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This component is from a 1960-70 vintage boat tachometer.

Mystery component

It's about 1.25" long. It generates not a single reading on my 11-function multimeter (including capacitance). I may have fried it removing it from the circuit board.

Thanks for any help.

2 Answers2

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It might be a 1uF +/-10% 250V film capacitor.

Eg. (0.1uF cap with similar markings from this website enter image description here

Check your meter's capacitance range on a known-good part if you don't use it frequently.

Spehro Pefhany
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The capacitance might be to small for most multimeters that I know of. I would recommend getting a good quality dedicated bench-top capacitance meter.

Note: I’ve had much better experience and accuracy with bench-top meters than with cheap handheld meters(I have also had a similar Experience with bench top oscilloscopes cheap handheld scopes are just not worth it.) however this post does not discriminate against owning a good handheld multimeter. (:

MR.TECH
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  • Thanks for the advice. In this case it was operator error. I'd missed the fact that the meter has two slots for cap leads. It only goes to 20uF, but that's enough in this case. – Bill Catlin Mar 09 '20 at 23:47