On Sun, Sep 8, 2019, 20:39 Guy Dunphy via cctalk
<cctalk at classiccmp.org>
wrote:
>
>We recently replaced the ferroresonant capacitor in a power supply on
the
CHM's
PDP-1. They do fail (thankfully, not often) - and
they are not
super-critical
as to value. If the one you're replacing has
the same marked value, you
should
be fine.
Yes, that's right. Find something with the same marked capacitance value.
The rated voltage can be the same or higher.
I can't seem to find motor caps that meet the voltage spec of 660V. 8uF
doesn't seem like a problem, but the combination together isn't looking
good. Are there any specific vendors I should be looking at? My usual
suspect of DigiKey isn't looking good.
Mouser has CDE 8 uF 660 VAC. 11 are on order from the manufacturer.
I have replaced several of these capacitors in PDP-8, LA30, PDP-9.
/Mattis