Parts for model A-4 [message #26468] |
Tue, 16 January 2018 13:41 ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
Jonomega3
Messages: 81 Registered: November 2012
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Im looking for original size filter caps for my 67 Kustom A-4 4500uf 50volt, 2.5" diameter x 3.5" height Anyone where to get these? Thanks jon
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Re: Parts for model A-4 [message #26470 is a reply to message #26468] |
Tue, 16 January 2018 19:27 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
chicagobill
Messages: 2005 Registered: April 2003
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Do you have a time machine?
Finding the same size and rating caps will be difficult. Modern caps are much smaller then old ones so you will find the correct rated parts will be much smaller in size than the original ones.
What is wrong with the ones in the amp now?
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Re: Parts for model A-4 [message #26477 is a reply to message #26468] |
Tue, 23 January 2018 16:03 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
chicagobill
Messages: 2005 Registered: April 2003
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Senior Member |
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I don't see the large filter caps go bad from age very often. I think I have had to replace them maybe six times in the last 40 years and mostly due to shorted conditions not loss of capacitance or high ESR.
If the noise happens across both channels, I'd start by looking at the power amp circuit. I'd try and fix the problems first, then if you want to go back and change out the caps or whatever parts you want to change due to age.
I've stated it here before, these amps were built to very high standards when they were new, using the best parts available at the time and most of them have aged very well compared to a lot of other amps out there from that time period.
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Re: Parts for model A-4 [message #26501 is a reply to message #26468] |
Sat, 27 January 2018 06:13 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) |
stevem
Messages: 4768 Registered: June 2004 Location: NY
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Senior Member |
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what do you have for electronic test equipment?
When you respond to this question please do so in the repair section since now that's where it should go, thanks in advance!
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