Hello to all.Getting ready to recap the power supply on my yamaha m-80 amp.There is a pair of 33,000uf @56v. and a pair of 47,000uf @45v.I checked mouser & newark & these are in the $50.each price range.Way more then I want to spend so can I parallel 3 or 4 capacitors to get the uf I need? I would be doing this 4 times.The smaller 10k,12k,15k, caps are only 4,5,6 dollars each.Is there any down side to doing this.This is for my personal amp so I do not have to worry about a customer seeing it. I was allso thinking of using # 12 solid wire to link them together.Any suggestions? Thanks, tom
Thanks your right.I'll look them over better.I am planing on a general recap & figured I would replace the big ones to.The amps 20 plus years old & I allways though with fresh power supply caps the base would be better.I hate to spend the better part of a hundred dollars on 4 caps.I wont spend half that on resistors, diodes small caps.Tom
I agree with CLiff, don;t replace them just because it feels good. Rebuild what needs rebuilding, then replace caps that need to be replaced.
However, a look through Digikey provides some stock number to consider:
565-3327-ND 47000uf 50v screw terminals $16.64 in stock
P10020-ND 33000uf 50v snap-in $13.16 in stock (In case the circuit doesn;t really HAVE to be 56v capped.)
P10022-ND 33000uf 50v snap-in $13.80 in stock (different dimensions)
P13283-ND 33000uf 80v snap-in $29.80 in stock
I like Mouser a lot, but Digikey often comes through on big caps. Sometimes Allied as well.
Hello,I also found the first & last caps at digi-key.When I get the unit open I will check voltage at that circut.The schematic shows 56v & our house ac here in florida was 123vac last time I checked.I always thought that the main power supply caps were the most important ones to renew because of age.And that they effect everything downstream.Thanks for posting,tom
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