Re: Cross for Keltron diodes?

jwelser@ccwf.cc.utexas.edu wrote:

> In any case, I fixed my Keltron supply, and it turned out NOT to
> be the diode. Although I was getting a short in both directions across
> the diode (in circuit) the real culprit was the .036 uF capacitor (It
> might be C41, but I don't remember for sure) which looks like it AC
> couples the output of the voltage quadrupler into the +90V rectifier
> circuit. That aforementioned cap was shorted. What's wierd is that that
> cap isn't strictly in parallel with the diode, so it's wierd that I read a
> short across the diode. There's probably a good explanation for it, I'm
> sure, but it was late, and I didn't think about it too much.
>
> I had to scavenge a replacement for that cap from a spare Keltron
> supply, so I need to get one of those caps. I'm not sure what type it is
> (it looks like an epoxy cylinder wrapped in yellow tape.) I suppose any
> .036, 100V, 5% capacitor will do, but I'm kinda curious as to what that
> type of capacitor is called. Anyone know what I'm talking about?
>
> Joe

If the diode that measured shorted was D42 you were
measuring the transformer winding through the shorted
C41.

.036 is a very weird value. Digikey and Mouser show
nothing of that value.
Received on Fri Aug 27 14:25:55 1999