Gb: F5 Pcb - Page 142

cviller · 9th September 2011, 03:19 PM

The normal small blue ones work fine - pins are fairly close and in line or in a v shape (there is an extra middle one). I can't remember the exact package code.

Roscoe Primrose · 9th September 2011, 03:59 PM

Quote:

Originally Posted by cviller

The normal small blue ones work fine - pins are fairly close and in line or in a v shape (there is an extra middle one). I can't remember the exact package code.

Like this one: T93YB502KT20 Vishay/Sfernice Trimmer Resistors - Through Hole ?

cviller · 9th September 2011, 04:00 PM

yes

Roscoe Primrose · 9th September 2011, 04:31 PM

Thanks cviller. That's the last piece of the puzzle...

Roscoe

AndrewT · 04:46 PM

Hi,
the advantage of 3pins inline (sil), is that one can orient the VR to enable which direction you prefer to turn to make an adjutment.
The disadvantage of the 3pins inline, is that one can insert it the wrong way.

The advanatge of 3pins offset, is that one cannot insert it the wrong way.
The disadvantage is that the designer might have a different idea from the user on which is the preferred way to adjust.

labjr · 10th September 2011, 02:27 AM

I measured mine before I soldered them in the board to make sure they were zeroed out while all the way counterclockwise, It's been a year since I assembled the boards. I still haven't finished the amplifier though.

intense-tavda · 29th December 2012, 10:36 PM

Hi CViller!
I got your boards F5C V2. Can I use them for the normal F5, 25Watt? And I heard that the ztx 550/450 that I have, has to be for Q5, the round part in front and for Q6, the round part to the back? Is that right? Thanks for the answer. Grtz Teake

neoinc · 30th December 2012, 06:30 AM

Checkout caviler blog, you should able to find the answer there!
diyAudio - cviller

cviller · 31st December 2012, 03:08 PM

Thanks neoinc!

Teake, if you have questions not answered in the F5 blog post, please let me know.

intense-tavda · 2nd January 2013, 09:47 PM

Hi Cviller!
I put the boards together, the F5c version from you, and got to much voltage on the output, 0,1 volt, and the powertransistors are getting very stinky hot. For R1 and R2 I got 10 watt 10 ohm resistors. Is it possible that the wattage from those transistors is to high? And are there maybe connecting points that I( missed, because I am using this board only for F5 purpose, and not for the Turbo version. Thanks for the answer. I think I got Q5 an Q6 right now an also P1 and P2.

9th September 2011, 04:43 PM	#1415
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, the advantage of 3pins inline (sil), is that one can orient the VR to enable which direction you prefer to turn to make an adjutment. The disadvantage of the 3pins inline, is that one can insert it the wrong way. The advanatge of 3pins offset, is that one cannot insert it the wrong way. The disadvantage is that the designer might have a different idea from the user on which is the preferred way to adjust. Last edited by AndrewT; 9th September 2011 at 04:46 PM.

29th December 2012, 10:36 PM	#1417
intense-tavda diyAudio Member Join Date: Jun 2005 Location: drachten	F5 Hi CViller! I got your boards F5C V2. Can I use them for the normal F5, 25Watt? And I heard that the ztx 550/450 that I have, has to be for Q5, the round part in front and for Q6, the round part to the back? Is that right? Thanks for the answer. Grtz Teake

2nd January 2013, 09:47 PM	#1420
intense-tavda diyAudio Member Join Date: Jun 2005 Location: drachten	F5 Hi Cviller! I put the boards together, the F5c version from you, and got to much voltage on the output, 0,1 volt, and the powertransistors are getting very stinky hot. For R1 and R2 I got 10 watt 10 ohm resistors. Is it possible that the wattage from those transistors is to high? And are there maybe connecting points that I( missed, because I am using this board only for F5 purpose, and not for the Turbo version. Thanks for the answer. I think I got Q5 an Q6 right now an also P1 and P2.

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9th September 2011, 03:19 PM	#1411
cviller diyAudio Member Join Date: Dec 2005 Location: Copenhagen Blog Entries: 2	The normal small blue ones work fine - pins are fairly close and in line or in a v shape (there is an extra middle one). I can't remember the exact package code.

9th September 2011, 04:00 PM	#1413
cviller diyAudio Member Join Date: Dec 2005 Location: Copenhagen Blog Entries: 2	yes

9th September 2011, 04:31 PM	#1414
Roscoe Primrose diyAudio Member Join Date: Jan 2004 Location: Virginia, USA	Thanks cviller. That's the last piece of the puzzle... Roscoe

10th September 2011, 02:27 AM	#1416
labjr diyAudio Member Join Date: Apr 2003 Location: MA	I measured mine before I soldered them in the board to make sure they were zeroed out while all the way counterclockwise, It's been a year since I assembled the boards. I still haven't finished the amplifier though.

30th December 2012, 06:30 AM	#1418
neoinc diyAudio Member Join Date: Dec 2008	Checkout caviler blog, you should able to find the answer there! diyAudio - cviller

31st December 2012, 03:08 PM	#1419
cviller diyAudio Member Join Date: Dec 2005 Location: Copenhagen Blog Entries: 2	Thanks neoinc! Teake, if you have questions not answered in the F5 blog post, please let me know.