>Hi Amp Experts,
>I purchase a Clipperton L Amp a while back and I'm having power supply
>problems...
>Any help would be greatly appreciated.
>The seller claimed the power supply had been rebuilt... After a few
>months, it took up
>smoking.. After inspection I find the 8 filter 100ufd caps (as shown on
>the schematic) had been replaced with 10 470ufd caps...
8, 500V caps = 4000V. 10, 450V caps = 4500V, so it should have even more
headroom.
>The extra 2
>caps have been mounted on
>a professional looking extra circuit board mounted to the inside side of
>the chassis.
>It almost looks like a modification. Can anyone with Clipperton L
>experience tell me if this is a recommended modification? Also, the
>traces on the rectifier board had been
>burned off previously and the new caps were hard wired on the rectifier
>board... Yikes !
>What a nightmare this is going to be to trace out ! It's kinda a mess.
>
>Anyway, I still don't know where the smoke was coming from.. There
>isn't any obvious
>signs of burning. The H.V. meter fluctuates considerably when turned on
Sounds kinda like a multiplier resistor problem.
>
>so about all
>I can do is start disassembling the power supply. Another question,
>does anyone know
>if anyone makes custom made rectifier circuit boards? I don't imagine I
>could ever find
>an original one. Last question, What would be the effect of
>changing the 100ufd (500v) caps to 470ufd (450v) caps? (I'm no EE)
>Any and all comments appreciated Tnx .... 73, Les, WØOJH
>
>
>
>
>
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- Rich..., 805.386.3734, www.vcnet.com/measures.
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