this is my first time posting here. i have a pair of 6SN7GTBs and a pair of 6V6GTY tubes. i want to try building a SET amp preferably tube rectified using 5U4G. i'm looking for good schematic i can use. can anyone please help me?
See: 12at7->6aq5 amp the 6AQ5 is electrically very similar to the 6V6, just can't handle quite as much plate voltage... Also 6SN7 -> 6550 amp
Neither of these is exactly what you're looking for, but there a good starting point...
Peace
Neither of these is exactly what you're looking for, but there a good starting point...
Peace
What sort of speakers are you planning to use the amp with? SE and triode strapped, a 6V6 will yield about 3 W. IMO, 98 dB. SPL speakers are indicated for 3 WPC amplification.
You could squeeze about 5 W. out of a 6V6 if it's wired UL SE. 95 dB. SPL speakers enter the picture at 5 WPC.
Cascaded common cathode gain blocks will give you plenty of drive. Don't forget a decoupling filter in a 3 stage amp. Perhaps a DC coupling expert will help in setting up the 'SN7s; that would leave only 1 cap. (between the driver and 6V6) in the signal path.
BTW, I tried the links Mr. Primrose provided. I get a page unavailable notification.
You could squeeze about 5 W. out of a 6V6 if it's wired UL SE. 95 dB. SPL speakers enter the picture at 5 WPC.
Cascaded common cathode gain blocks will give you plenty of drive. Don't forget a decoupling filter in a 3 stage amp. Perhaps a DC coupling expert will help in setting up the 'SN7s; that would leave only 1 cap. (between the driver and 6V6) in the signal path.
BTW, I tried the links Mr. Primrose provided. I get a page unavailable notification.
Eli Duttman said:
thank you for the replies. i'm currently using an 8" single full range driver in a voigt pipe. my current amp which is a 2A3 can easily drive it to loud levels. just wanted to utilize these spare tubes. i already have a 6V6 push-pull amp so i wanted to build a another 6V6 amp but in a SET config.
http://www.boozhoundlabs.com/howto/
others here can comment on the optimum bias / load values
cheers 🙂
others here can comment on the optimum bias / load values
cheers 🙂
If you are into experimentation (!) maybe try it in pentode mode with a little negative feedback. I made one sound very good using this method.
6V6s are great tubes, better than those christmas-tree-light 6AQ5s! And they can easily handle 12W or more dissipation (5W audio in pentode mode)
6V6s are great tubes, better than those christmas-tree-light 6AQ5s! And they can easily handle 12W or more dissipation (5W audio in pentode mode)
camotecue,
You have high efficiency speakers. So, triode strapped 6V6s will be fine.
Build a stereoblock from the schemo planet10 provided. Save the extra 6SN7 for the future, but you will replace the 6V6s long before the driver wears out.
You have high efficiency speakers. So, triode strapped 6V6s will be fine.
Build a stereoblock from the schemo planet10 provided. Save the extra 6SN7 for the future, but you will replace the 6V6s long before the driver wears out.
planet10's schematic and my link are the same , ... the link i posted earlier gives you some background into the design process and construction, .. always useful for beginner.
cheers
cheers
6V6 amp
thank you all guys for contributing to my query. it may be difficult to find 5Y3 tubes here in the Philippines. can you please help me design the power supply of the triode strapped-schematic as posted here in this thread by using 5u4g tube instead.
thank you all guys for contributing to my query. it may be difficult to find 5Y3 tubes here in the Philippines. can you please help me design the power supply of the triode strapped-schematic as posted here in this thread by using 5u4g tube instead.
6V6 amp
hello shifty! can you please post the schematic of your pentode mode-design so i can compare? did you use 6SN7 tubes also as the driver and 5u4g rectifier tube? thanks
ShiFtY said:
hello shifty! can you please post the schematic of your pentode mode-design so i can compare? did you use 6SN7 tubes also as the driver and 5u4g rectifier tube? thanks
Re: 6V6 amp
camotecue, we have soooo many 5Y3. you just need to look at the right place, but if you like i can buy for you (cheaper, he he)camotecue said:
5U4 and 5Y3 are pretty much the same, 5U4 has a 3A filament and can handle more B+ current. If your 5V filament winding can handle it, you can plug a 5U4 straight in.
Sorry no schematic, but the 1/2 12ax7 -> 6v6 posted earlier is pretty much identical. Just change the preamp anode and cathode resistors to suit 1/2 a 6SN7 instead of 12AX7.
Sorry no schematic, but the 1/2 12ax7 -> 6v6 posted earlier is pretty much identical. Just change the preamp anode and cathode resistors to suit 1/2 a 6SN7 instead of 12AX7.
Re: Re: 6V6 amp
ah ok sir! please help me buy a 5y3 tube. i'll start buying the parts for the amp.
arnoldc said:
ah ok sir! please help me buy a 5y3 tube. i'll start buying the parts for the amp.
5Y3 drops 60V compared to 45V of 5U4. in my 45 amp it was quite critical and i needed the 5Y3 because i goofed in the power transformer 
camotecue, how many do you need? 2 pcs?
camotecue, how many do you need? 2 pcs?
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