mixing caps?

marko · 17th May 2004, 06:47 PM

on my phoenix gold amp i've just changed one bank of caps (originally 2200uf 16v) to 35v caps. i havn't changed the good side but would it hurt the amp having higher voltage caps on opposite sides of circuit board?

also, the 47ohm resisters look a bit burnt but are reading correct on the multimetre, are these ok?

Magura · 17th May 2004, 09:35 PM

Im sure it wont hurt the amp, but my experience (only one attempt) made the amp oscilliate like crazy when just replacing one bank of caps.

Magura

marko · 18th May 2004, 05:10 AM

ocilliate? what is that in "beginers" terms!!

Magura · 18th May 2004, 12:12 PM

It creates a frequency on its own and usually generates a lot of heat and or noise.

Magura

boholm · 18th May 2004, 12:27 PM

. . . and if not turned off in time, it will burn up

marko · 18th May 2004, 01:21 PM

i think i'll play it safe and order some more caps

boholm · 18th May 2004, 06:56 PM

Good idea

marko · 19th May 2004, 06:32 PM

good news, changed all 12 caps now and 4 irfp044 transistors and it works like new

, bench tested it at 2 ohms today and it pounded without any stress and NO smoking!

17th May 2004, 06:47 PM	#1
marko diyAudio Member Join Date: May 2004 Location: donnyuk	mixing caps? on my phoenix gold amp i've just changed one bank of caps (originally 2200uf 16v) to 35v caps. i havn't changed the good side but would it hurt the amp having higher voltage caps on opposite sides of circuit board? also, the 47ohm resisters look a bit burnt but are reading correct on the multimetre, are these ok?

17th May 2004, 09:35 PM	#2
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	Im sure it wont hurt the amp, but my experience (only one attempt) made the amp oscilliate like crazy when just replacing one bank of caps. Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

18th May 2004, 12:12 PM	#4
Magura diyAudio Member Join Date: Oct 2003 Location: Denmark, Viborg	It creates a frequency on its own and usually generates a lot of heat and or noise. Magura __________________ Everything is possible....to do the impossible just takes a little while longer. www.class-a-labs.com

18th May 2004, 12:27 PM	#5
boholm diyAudio Member Join Date: Apr 2004 Location: Copenhagen	. . . and if not turned off in time, it will burn up __________________ Best regards Bo

18th May 2004, 06:56 PM	#7
boholm diyAudio Member Join Date: Apr 2004 Location: Copenhagen	Good idea __________________ Best regards Bo


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18th May 2004, 05:10 AM	#3
marko diyAudio Member Join Date: May 2004 Location: donnyuk	ocilliate? what is that in "beginers" terms!!

18th May 2004, 01:21 PM	#6
marko diyAudio Member Join Date: May 2004 Location: donnyuk	i think i'll play it safe and order some more caps

19th May 2004, 06:32 PM	#8
marko diyAudio Member Join Date: May 2004 Location: donnyuk	good news, changed all 12 caps now and 4 irfp044 transistors and it works like new , bench tested it at 2 ohms today and it pounded without any stress and NO smoking!

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