I use battery but can't adjust the grid voltage to 0V
merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:24 pm #6,721 2015-02-23 12:24 pm #6,721 I use battery but can't adjust the grid voltage to 0V ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 12:29 pm #6,722 2015-02-23 12:29 pm #6,722 It should adjust and you can't, or there is no way to adjust as it is now? i.e. the circuit could use/uses a bias trimmer/pot. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:32 pm #6,723 2015-02-23 12:32 pm #6,723 I'm using two 1,5V battery in parallel Attachments Frank 6sn7pre1 mod Felipe.gif 17.2 KB · Views: 273 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:34 pm #6,724 2015-02-23 12:34 pm #6,724 Actual bias 13mA, I want to reduce to max. 6.5mA ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 1:09 pm #6,725 2015-02-23 1:09 pm #6,725 Maybe you use them in series? See what happens if you put another 1.5V cell in series to go -4.5V ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 1:58 pm #6,726 2015-02-23 1:58 pm #6,726 Yes I use them in series to get -3V, good idea, I will try later, now time to have lunch, today italian food: spaghetti with tomate & meat. Last edited: 2015-02-23 2:28 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 2:31 pm #6,727 2015-02-23 2:31 pm #6,727 Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid? Attachments 6H8C bias point 001.jpg 245.9 KB · Views: 261 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 12:29 pm #6,722 2015-02-23 12:29 pm #6,722 It should adjust and you can't, or there is no way to adjust as it is now? i.e. the circuit could use/uses a bias trimmer/pot. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:32 pm #6,723 2015-02-23 12:32 pm #6,723 I'm using two 1,5V battery in parallel Attachments Frank 6sn7pre1 mod Felipe.gif 17.2 KB · Views: 273 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:34 pm #6,724 2015-02-23 12:34 pm #6,724 Actual bias 13mA, I want to reduce to max. 6.5mA ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 1:09 pm #6,725 2015-02-23 1:09 pm #6,725 Maybe you use them in series? See what happens if you put another 1.5V cell in series to go -4.5V ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 1:58 pm #6,726 2015-02-23 1:58 pm #6,726 Yes I use them in series to get -3V, good idea, I will try later, now time to have lunch, today italian food: spaghetti with tomate & meat. Last edited: 2015-02-23 2:28 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 2:31 pm #6,727 2015-02-23 2:31 pm #6,727 Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid? Attachments 6H8C bias point 001.jpg 245.9 KB · Views: 261 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
It should adjust and you can't, or there is no way to adjust as it is now? i.e. the circuit could use/uses a bias trimmer/pot.
merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:32 pm #6,723 2015-02-23 12:32 pm #6,723 I'm using two 1,5V battery in parallel Attachments Frank 6sn7pre1 mod Felipe.gif 17.2 KB · Views: 273 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:34 pm #6,724 2015-02-23 12:34 pm #6,724 Actual bias 13mA, I want to reduce to max. 6.5mA ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 1:09 pm #6,725 2015-02-23 1:09 pm #6,725 Maybe you use them in series? See what happens if you put another 1.5V cell in series to go -4.5V ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 1:58 pm #6,726 2015-02-23 1:58 pm #6,726 Yes I use them in series to get -3V, good idea, I will try later, now time to have lunch, today italian food: spaghetti with tomate & meat. Last edited: 2015-02-23 2:28 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 2:31 pm #6,727 2015-02-23 2:31 pm #6,727 Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid? Attachments 6H8C bias point 001.jpg 245.9 KB · Views: 261 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
merlin el mago Member Joined 2009 Paid Member 2015-02-23 12:34 pm #6,724 2015-02-23 12:34 pm #6,724 Actual bias 13mA, I want to reduce to max. 6.5mA ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 1:09 pm #6,725 2015-02-23 1:09 pm #6,725 Maybe you use them in series? See what happens if you put another 1.5V cell in series to go -4.5V ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 1:58 pm #6,726 2015-02-23 1:58 pm #6,726 Yes I use them in series to get -3V, good idea, I will try later, now time to have lunch, today italian food: spaghetti with tomate & meat. Last edited: 2015-02-23 2:28 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 2:31 pm #6,727 2015-02-23 2:31 pm #6,727 Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid? Attachments 6H8C bias point 001.jpg 245.9 KB · Views: 261 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 1:09 pm #6,725 2015-02-23 1:09 pm #6,725 Maybe you use them in series? See what happens if you put another 1.5V cell in series to go -4.5V ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 1:58 pm #6,726 2015-02-23 1:58 pm #6,726 Yes I use them in series to get -3V, good idea, I will try later, now time to have lunch, today italian food: spaghetti with tomate & meat. Last edited: 2015-02-23 2:28 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 2:31 pm #6,727 2015-02-23 2:31 pm #6,727 Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid? Attachments 6H8C bias point 001.jpg 245.9 KB · Views: 261 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
merlin el mago Member Joined 2009 Paid Member 2015-02-23 1:58 pm #6,726 2015-02-23 1:58 pm #6,726 Yes I use them in series to get -3V, good idea, I will try later, now time to have lunch, today italian food: spaghetti with tomate & meat. Last edited: 2015-02-23 2:28 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 2:31 pm #6,727 2015-02-23 2:31 pm #6,727 Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid? Attachments 6H8C bias point 001.jpg 245.9 KB · Views: 261 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
Yes I use them in series to get -3V, good idea, I will try later, now time to have lunch, today italian food: spaghetti with tomate & meat.
merlin el mago Member Joined 2009 Paid Member 2015-02-23 2:31 pm #6,727 2015-02-23 2:31 pm #6,727 Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid? Attachments 6H8C bias point 001.jpg 245.9 KB · Views: 261 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
Yes connected in series for -3V, as the attached load lines of 6H8C for anode voltage 180V I have to bias near -6V the grid?
merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:12 pm #6,728 2015-02-23 4:12 pm #6,728 Add other 1.5V cell in series, -4.84V aplied to grid, I guess new bias point 8mA. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
S stajo Member Joined 2011 Paid Member 2015-02-23 4:13 pm #6,729 2015-02-23 4:13 pm #6,729 If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K. Last edited: 2015-02-23 4:16 pm ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
If I were you I would have set the battery between the pot and ground instead (given that the devise feeding it has an output cap). The fewer batterys you serial the higher the tube bias current, which you best measure over 47K.
merlin el mago Member Joined 2009 Paid Member 2015-02-23 4:32 pm #6,730 2015-02-23 4:32 pm #6,730 The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid. Last edited: 2015-02-23 4:34 pm ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
The stepped attenuator (ladder always the source sess 100K) is in other box, the batteries are in series between the pot & the grid.
S stajo Member Joined 2011 Paid Member 2015-02-23 4:39 pm #6,731 2015-02-23 4:39 pm #6,731 So your plan was to place SSLV between wiper and grid? ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
merlin el mago Member Joined 2009 Paid Member 2015-02-23 5:13 pm #6,732 2015-02-23 5:13 pm #6,732 No, because Salas told isn't necessary. ••• More options Share S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator Top Bottom
S stajo Member Joined 2011 Paid Member 2015-02-23 5:15 pm #6,733 2015-02-23 5:15 pm #6,733 Good ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator
merlin el mago Member Joined 2009 Paid Member 2015-02-23 9:19 pm #6,734 2015-02-23 9:19 pm #6,734 merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough? ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link Home Amplifiers Power Supplies The simplistic Salas low voltage shunt regulator
merlin el mago said: I'm using two 1,5V battery in series Click to expand... Salas I adjusted SSHV2 CCS for 35mA, is enough?
Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-23 10:15 pm #6,735 2015-02-23 10:15 pm #6,735 35-(8+8)=19mA spare. Alright, almost 20 as we use for minimum. If its cool enough now, give 40. ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:21 am #6,736 2015-02-24 11:21 am #6,736 ••• More options Share merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
merlin el mago Member Joined 2009 Paid Member 2015-02-24 11:24 am #6,737 2015-02-24 11:24 am #6,737 Its cool enough, now haves 40. ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
RCruz Member Joined 2006 Paid Member 2015-02-24 8:38 pm #6,738 2015-02-24 8:38 pm #6,738 Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail.... Last edited: 2015-02-24 8:43 pm ••• More options Share Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button. Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link
Hi Salas Why does K117 used as Vref CCS in the shunt climb faster (less drift) than K170 ? I know it does but not sure why. PS: I have sent you an e-mail....
Salas diyAudio Chief Moderator Joined 2002 Paid Member 2015-02-24 8:46 pm #6,739 2015-02-24 8:46 pm #6,739 Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically . ••• More options Share RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share Prev 1 … Go to page Go 335 336 337 338 339 … Go to page Go 390 Next First Prev 337 of 390 Go to page Go Next Last Show hidden low quality content Status This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Different Gos (output conductance) parameter probably, although their spec sheets don't mention it specifically .
RCruz Member Joined 2006 Paid Member 2015-02-24 9:11 pm #6,740 2015-02-24 9:11 pm #6,740 Never heard about jfet Gos... does it appear on datasheets ? ••• More options Share
