PCM-42....where to find some 16mm 10KB center tapped pots ,

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I've looked at the schemo (thanks moamps for this very interesting source).
The center tap arrangement is there just for smoothing the response of the pot across its rotation. If you install a standard 10kLin, you will get all the original functionalities, except a slight level drop in mid position.
 
hi Gyraf, abbey road d'enfer, shabtek ,moamps !
thank you very much for jumping in this thread,
and thank you very very much for the help,
Gyraf, i allready asked lexicon for the spare parts,
but for now, i haven't got any answers form them...
Abbey Road d'enfer, do you know how i should wire the pot ?
use pin 1 to 3  or 2  to 4 ?
Shabtek, will your 20k pot with 2 5k Rs series-parallel recreate the
center tapped pot ?
regards,
pacemaker
 
I think so. err not 5k; 10k resistors in series, parallel that with the 20k. that 2 20k resistors in parallel=10k the point between the 2 10k is center tapped-ish.
since its linear taper this should work.

abbey what say you?
 
@shabtek: No, it won't work. The original scheme brings a low impedance (read zero ohm output from opamp) to the center tap, so it reduces loading of the pot. Two resistors would present too high impedance. This is intended only for avoiding level loss along the rotation of the pot.
@pacemaker: The pot should be connected 1, 2, 3. Just ignore the rightmost pin.
 
Thankf a lot abbey Road,
i will try this this afternoom and will keep you posted,
I've posted a WTB thread about these pots in the black market,
but if somebody know where to find them,
i would be happy to have this intel.
regards
pacemaker
 
thanks a lot guys for the help,
abbey road, your solution worked perfectly, thank you very much,
10K lin center tapped pot replaced with a classic 10K lin pot,
and it work like a charm !!!!
 
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