What is it? (component)

Size and shape is identical to a 1/4 watt carbon axial lead resistor.

Body is glass-like and has a red band on each end.

Markings are: 104M - - 50V - - WC - - 8421

Analog ohm meter reads infinity but slowly drops to about 5 meg in about 10 seconds time. Readings in both directions are identical.

Thanks for the help, Ivan Vegvary

Reply to
Ivan Vegvary
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"Ivan Vegvary"

** Class encapsulated, ceramic capacitor. 100nF, 20% tolerance 50V rating - made in the 21st week of 1984.

Likely manufactured by Unitrode.

Old Peavey guitar amps were full of them - easily mistaken for zener diodes.

.... Phil

Reply to
Phil Allison

Yes, the giveaway was the "104".

Michael

Reply to
Michael Black

"Michael Black"

** Must be one of them rocket scientist types ....

.... Phil

Reply to
Phil Allison

Like Phil said, its a 100nF cap.

What I want to know, though, is why the meter starts at infinity then drops to 5 megohm -- I would think it'd stay at infinity.

--
Tim Wescott 
Control system and signal processing consulting 
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Reply to
Tim Wescott

Somebody's fingers are holding the test leads against the capacitor leads and increased pressure causes the reading to drop?

Michael

Reply to
Michael Black

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