Crest Audio 4801 PSU Capacitors

tarka25 · 21st October 2008, 04:03 PM

Hi,
I was wondering if anyone knew where to source the 17,000uf 55v capacitors that appear on the power supply pcb.

I have searched, but cannot find the ones in the correct package size, they all seem to be 2.5" diameter.

Many thanks

Diane

lineup · 21st October 2008, 07:38 PM

try to find some 15.000 or even 10.000 uF
can not be very critical

KBK · 22nd October 2008, 12:36 AM

show us the type (mounting) and size of the given capacitors. If anything, go for slightly more capacitance, not less...as most commercial designs are a hair skimpy with energy storage.

All sizes are standardized if they are snap mount or 2.5" diameter screw in type. If it is an amplifier that is more than about 10 years old, nowadays..there is likely to be a better quality and slightly bigger cap for that given can size.

tarka25 · 23rd October 2008, 05:15 PM

They are 1.5"dia, 3 pin snap in and approx 3" high.
I'm a little nervous at changing the values as there are 4 caps all linked in parallel, I could change them all if I was changing values, bur realistically it's going to cost in excess of £60 to do that, so I would rather source one that could just be swapped in.

21st October 2008, 04:03 PM	#1
tarka25 diyAudio Member Join Date: Oct 2008	Crest Audio 4801 PSU Capacitors Hi, I was wondering if anyone knew where to source the 17,000uf 55v capacitors that appear on the power supply pcb. I have searched, but cannot find the ones in the correct package size, they all seem to be 2.5" diameter. Many thanks Diane

21st October 2008, 07:38 PM	#2
lineup diyAudio Member Join Date: Dec 2005 Location: the north	try to find some 15.000 or even 10.000 uF can not be very critical __________________ lineup

22nd October 2008, 12:36 AM	#3
KBK diyAudio Member Join Date: Dec 2003 Location: The Wilds Of Canada	show us the type (mounting) and size of the given capacitors. If anything, go for slightly more capacitance, not less...as most commercial designs are a hair skimpy with energy storage. All sizes are standardized if they are snap mount or 2.5" diameter screw in type. If it is an amplifier that is more than about 10 years old, nowadays..there is likely to be a better quality and slightly bigger cap for that given can size. __________________ "Never forget that only dead fish swim with the stream." -- Malcolm Muggeridge. "Truth cannot be brought down, rather the individual must make the effort to ascend to it." -- Jiddu Krishnamurti

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23rd October 2008, 05:15 PM	#4
tarka25 diyAudio Member Join Date: Oct 2008	They are 1.5"dia, 3 pin snap in and approx 3" high. I'm a little nervous at changing the values as there are 4 caps all linked in parallel, I could change them all if I was changing values, bur realistically it's going to cost in excess of £60 to do that, so I would rather source one that could just be swapped in.

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