220 uF is fine. I would go with the highest value that I can find that
has the same case size. That will give you better regulation.
Mike, W1NR
TMorton wrote:
> Hola,
> My 5 yr Acom 1000 went 'KAPOW' a couple of days ago. It was sitting in
> standby awaiting action. This is the 3rd time I have had
> 'kapow'....first was about 1.5 years ago. Found there was a spot on the
> bottom of one cap (Acom uses 8 150uf/450v caps) that appeared to have
> shorted to the bottom of the chassis. Acom had used some sort of rubber
> looking thingy to insulate and act as shock absorber under the double
> row of caps. We removed the rubber and liberally applied tape to the
> bottom of the offending cap...
> Second 'kapow' was about 2 months ago. This time we found that R1A, a 3w
> resistor in the HV supply had cooked itself. Replaced and all was fine
> until a couple of days ago. We (Pedro/CX5BW) and I did some
> troubleshooting and discovered that the original offending cap (the one
> with tape on the bottom) was now leaking....cant find those replacement
> caps here in CX land so we jury rigged a 470uF 450v cap in its' place
> and all is well.
> I am heading for states next week and will pick up some caps; probably
> good idea to replace all 8 now....sooo, my question is: any problem with
> increasing the caps to 220 uF/450v caps? They would be prefect fit as
> they are 25 x 40mm...original were 25 x 43. This would help with the
> clearance from the bottom of the caps to the chassis.
> What say you, gang?
>
> 73
> Tom
> CX7TT/CW7T in ARRL SSB
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>
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