bad precision pot?

[Martin Czech]

:::>I've read somewhere that precision 10 turn wirewound pots have problems.
:::
:::wellll.... I believe I know where you read that, it was my hero Bob Pease
:::in his book on analog troubleshooting, talking about multiturn trimpots.
:::This is one of the very few things I disagree with him on. I havn't had
:::troubles with these little fellas.

Yes, I remember now, I guess it was B. Pease in "Troubleshooting".

:::
:::Those great big ones, made to take dial mounted reduction drives, would
:::sure have plenty of inductance, I guess.

Sure. Therefore use them for dc only. But they are precise, my (linear)
test oscillator can be tuned very precisely.  A hard fist punch on the
table (everything jumps) won't make any frequency change (inside the
normal phase noise band, of course), even if the brake is not active.

But uncle Bob didn't write about these panel types, I think.

m.c.