[pabbi1]

Got the audio taper 100k Cp2511 from Parts Connexion, but their instructions reference 4 pins, where 1 is unused, 2 is input, C is wiper, and ??? There is a funky center plane with a common kind of tab - is that ground?

The traditional 1 - input, 2 - wiper, and C - ground does not seem to work on these pots.

Anyone used these?

 

[Pars]

The TKD 2CP2511 pots that I have used are identical in pinout to an Alps Blue, etc. Looking at the pot from the front with the pins down, the L pin is ground, middle is the wiper and right is the input, per row. If you have a DMM, you can verify this. R - L pins should give you pot value. L pin to center will show the wiper action (increasing as pot is turned CW).

 

[MisterX]

http://www.tkd-corp.com/02_products/pdf/p06_cp-2500.pdf

 

[pabbi1]

Yes, all that is helpful, but here is the real issue, poorly stated before. My cheapie 100k attenuators have 100k resistance per channel, whereas the TKD 100k is 50k per channel - not what I had perceived. My bad.

Indeed these pots measure 48.8k. Off to change my NFB resistors.

Thanks guys.