Gb: F5 Pcb - Page 98

CJC · 20th November 2009, 04:01 PM

Hello Christian,

Received the boards today

They look great!
Thanks!
CJC

rtate · 20th November 2009, 05:20 PM

I'm putting my PS board together and have a couple of questions...

The BOM that I am using has R9 and R10 as the 2.2K 3watt resistors used for
discharging the caps on power down.
Looking at a schematic I think that these resistors shoud be in the R1 and R4
locations.
R2,3,5,6,7,8,9 and 10 are the .47 ohm resistors, is this correct??

Also what are the T13,14,15,16 and T7, T18 conections for?

Thanks....

rtate · 20th November 2009, 06:41 PM

T18 is a typo, it should have read T10...
Sorry for the confusion...

danFrank · 20th November 2009, 07:33 PM

Hi, Any more F5 boards available?
Thanks, Daniel

Kashmire · 22nd November 2009, 11:33 PM

Hi, any more F5 boards available?

/late to the party ... as always ...

Renron · 23rd November 2009, 04:15 PM

Quote:

Originally Posted by rtate

I'm putting my PS board together and have a couple of questions...

The BOM that I am using has R9 and R10 as the 2.2K 3watt resistors used for
discharging the caps on power down.
Looking at a schematic I think that these resistors shoud be in the R1 and R4
locations.
R2,3,5,6,7,8,9 and 10 are the .47 ohm resistors, is this correct??

Also what are the T13,14,15,16 and T7, T18 conections for?

Thanks....

They are used for extra power taps, as Christian has stated before he designed these boards to be used with / as other designs too. Good thinking!

Ron

rtate · 23rd November 2009, 04:23 PM

Thanks Ron,

Do the 2.2k bleed resistors go in the R1 and R4 locations??

Renron · 23rd November 2009, 04:35 PM

rtate,

You are correct. To answer any other questions, or just FYI. Christian has a very good PDF on the build of the PS & F5 boards.

http://viller.eu/audio/2009jan_gbf5/gbf5_guide.pdf

Ron

rtate · 23rd November 2009, 04:58 PM

Thanks Ron, I do have a copy of that guide and should have checked there first.
Sometimes when these threads get long, some mis information(although good intentioned) slips in and I had made a copy of another BOM that had the bleed resistors in the wrong spot and I saw some photos over ar AK that also had the resistors in the wrong location....

Thanks again.

Renron · 23rd November 2009, 06:36 PM

My PS bleeds down to 0Volts in about 20 seconds.

Ron

20th November 2009, 05:20 PM	#972
rtate diyAudio Member Join Date: Jan 2002 Location: Burlington, Ontario, Canada	PS Board question I'm putting my PS board together and have a couple of questions... The BOM that I am using has R9 and R10 as the 2.2K 3watt resistors used for discharging the caps on power down. Looking at a schematic I think that these resistors shoud be in the R1 and R4 locations. R2,3,5,6,7,8,9 and 10 are the .47 ohm resistors, is this correct?? Also what are the T13,14,15,16 and T7, T18 conections for? Thanks....

23rd November 2009, 04:35 PM	#978
Renron diyAudio Member Join Date: Jan 2007 Location: Sacramento	rtate, You are correct. To answer any other questions, or just FYI. Christian has a very good PDF on the build of the PS & F5 boards. http://viller.eu/audio/2009jan_gbf5/gbf5_guide.pdf Ron __________________ "If it doesn't work properly, hope it catches on fire"- Nelson Pass @ BA3

23rd November 2009, 06:36 PM	#980
Renron diyAudio Member Join Date: Jan 2007 Location: Sacramento	My PS bleeds down to 0Volts in about 20 seconds. Ron __________________ "If it doesn't work properly, hope it catches on fire"- Nelson Pass @ BA3

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20th November 2009, 04:01 PM	#971
CJC diyAudio Member Join Date: Aug 2009	Hello Christian, Received the boards today They look great! Thanks! CJC

20th November 2009, 06:41 PM	#973
rtate diyAudio Member Join Date: Jan 2002 Location: Burlington, Ontario, Canada	T18 is a typo, it should have read T10... Sorry for the confusion...

20th November 2009, 07:33 PM	#974
danFrank diyAudio Member Join Date: May 2005 Location: California	Hi, Any more F5 boards available? Thanks, Daniel

22nd November 2009, 11:33 PM	#975
Kashmire diyAudio Member Join Date: Dec 2003 Location: Midwest	Hi, any more F5 boards available? /late to the party ... as always ...

23rd November 2009, 04:23 PM	#977
rtate diyAudio Member Join Date: Jan 2002 Location: Burlington, Ontario, Canada	Thanks Ron, Do the 2.2k bleed resistors go in the R1 and R4 locations??

23rd November 2009, 04:58 PM	#979
rtate diyAudio Member Join Date: Jan 2002 Location: Burlington, Ontario, Canada	Thanks Ron, I do have a copy of that guide and should have checked there first. Sometimes when these threads get long, some mis information(although good intentioned) slips in and I had made a copy of another BOM that had the bleed resistors in the wrong spot and I saw some photos over ar AK that also had the resistors in the wrong location.... Thanks again.

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