Quote:
Originally Posted by NickG0HIK
In my stock I have Mustard Polyesters (400v) and polystyrene's (not sure of their voltage rating), which or neither should I choose for use from 20 to 40 MHz ?
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Silver Mica for these sorts of frequencies. They usually have values stamped on them in pF. They last forever, so NOS are fine, or just ask on the forum, people might have some in their parts boxes.