[Milsurplus] Micamold caps
Brad Latta
bl_6000 at yahoo.com.au
Thu Nov 23 02:15:05 EST 2006
Dennis,
I just pulled out one of these caps &
connected it to a 250Vdc supply. With a resistor for
current limiting in series with the Micamold cap, the
cap draws around 1.45mA. Voltage across cap started
out at around 95 volts & has now dropped to 43 volts.
Any tube connected to this cap, especially if the
other end is grounded ( lots of 0.01uF bypass
Micamolds in the 348) will be overheated. Here goes
another few months of restoration!,
Brad
--- W7QHO at aol.com wrote:
>
> In a message dated 11/22/06 10:34:03 PM,
> richard.arland at verizon.net writes:
>
>
> > I have a BC-312 that I am going to restore later
> this winter. I was
> > wondering the same thing...are the Micamold caps
> worth the hassle? I'm
> > interested in the replies you might get on this
> question. Al Klase, N3FRQ,
> > told me that they were a real pain in the tail to
> replace. Just wondering if
> > it is worth the trouble.
> >
>
> Rich,
>
> See my reply to Brad. Yes, replacement of these in
> the BC-312 is a pain.
> The old plastic units are in all the IF cans, the
> BFO and HF oscillator
> enclosures and down inside the RF coil boxes.
> Unfortunately, any that aren't
> already leaking or shorted will be. The beasts not
> buried in the BC-348 so
> recapping is a much easier job.
>
> Dennis D. W7QHO
> Glendale, CA
>
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