[AMRadio] Capacitators needed

wwd at netheaven.com wwd at netheaven.com
Sun Feb 24 19:17:27 EST 2002


In <3C797D57.9C31AEF4 at mediaone.net>, on 02/24/2002 
   at 06:55 PM, Gary Schafer <gschafer at mediaone.net> said:

>So... I am in need of some filter caps.  What is in there now is 9 each
>240 MFD @ 450 volts. They have screw terminals made by mallory. Does
>anyone have any capacitors like that or possibly an oil filled capacitor
>of around 25 MFD at 4000 volts or so ?
>I am open to any other type that I can make fit in the space available.

>Thanks
>Gary  K4FMX

Search on eBay. Electrolytics are offered everyday. Mostly in one of those
huge catchall electronics/testgear categories. I still see 1992 Michicon
lots. Same as the stash I have here- it was a good year.   :)

BTW, just hook the new caps up in series by themselves. Forget that
nonsense about the "dividing resistors". These, when connected across each
electrolytic, act contrary to the normal "failure-mode" of electrolytics
so their use is non-sensical. This from a Mallory engineer, not me.

Same goes for "dividing resistors" across each diode in a s/s string, but
that is another troll.

Test by bringing up each cap individually to its working voltage. No need
to tarry-  do it in no more than ten seconds. Let it (them) cook for an
hour or more to get a good etching going, or whatever it is they do.

Good luck,
Bill

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wwd at netheaven.com           N2KQA
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