[R-390] Re R382 caps
Perry Sandeen
sandeenpa at yahoo.com
Sun Mar 22 19:05:02 EDT 2020
Yo Bubba Dudes!,
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I took apart the 2nd IF can and disconnected the capacitor and ittested fine on two? different (cheapy) capacitor meters. It had thecorrect value and showednoleakage. I then applied 250 volts DC and measured about 0.20 volts DCleaking through it. I also tested the suspect cap with my newlyacquired GenRad 1657 LCR meter.
You've discovered what I posted on the reflector before.
You need something like a Sprague TO-6 or similar that uses B+ for testing or if your really, really cheap (and lucky) you could use the B+ from a receiver to do thee same test. There should be no voltage on the open end.
<Snip>
I have a feeling that these SM caps are going to be a pain in thefuture. They are all giving up now!
Yes. Dan's Small Parts. Shotgun now or string out the misery for years to come as these caps are old enough to get full Social Security benefits. Sadly, there still is no free lunch.
Regards,
Perrier
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