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Old 12-05-2021, 11:20 PM   #33
Dannyx
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Join Date: Aug 2016
City & State: Constanta
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Default Re: Op-amp preamp discussion

Quote:
Originally Posted by petehall347 View Post
loudness tap as well ..bargain ..
the ones pioneer used were pretty good . think its 60 clicks on my one .
This one is 22, counting the zero position. I had no idea what the fourth pin was for. Measuring it against the others just gave some random BS reading that made no sense. After reading about it, I learned it's called a loudness tap and it's connected somewhere in the middle of the resistors, so at one point the resistance between the wiper and this pin becomes zero indeed.

No idea what I could use that for though...
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