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I recovered a few capacitors of this style from an old cassette player. As far as I can tell, it seems like Mylar film, but the “100⊖” marking has me wondering. Is this some peculiar shaped tantalum capacitor, or is the indicator not a polarity marking?

enter image description here

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  • \$\begingroup\$ related thread about salvaging components from junk \$\endgroup\$ – Nick Alexeev Nov 13 '18 at 0:56
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    \$\begingroup\$ Given neither end has any markings to indicate polarity, no broad lines coming down an end, I'd say this is 0.010uF 100Volt. \$\endgroup\$ – analogsystemsrf Nov 13 '18 at 2:19
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My guess would be 10 nF mylar (first 2 digits = 10, third = multiplier 10^3 pF) 100 V. J = 5 %. I reckon that 10 nF is too small for a tantalum so I don't think this is polarized.

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    \$\begingroup\$ Me, too. I have no clue what the dingus is after the 100 - maybe a really little logo? But it's the right size and shape to be a mylar cap with that value. \$\endgroup\$ – TimWescott Nov 13 '18 at 1:10

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