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-   -   25k pot for Gainclone? (http://www.diyaudio.com/forums/chip-amps/28312-25k-pot-gainclone.html)

giambi77 16th February 2004 02:45 AM

25k pot for Gainclone?
 
I am following this design by Peter Daniel:
http://www.diyaudio.com/forums/attac...&postid=306195


And I have 2x 25k of these pots:
http://www.partsexpress.com/images/023-500m.jpg


The schematic calls for 50k pots.....what should I do? Would the 25k pots (one for each channel) work fine? Can I put it in series with 25k worth or resistors?

Thanks for any ideas you guys may have!

Also, how do I wire this pot? :)

Peter Daniel 16th February 2004 02:55 AM

Schematic calls for 50k pot as this what I had available. But 25K pot is even better (I hope it's log). In this case 22k shunt resistor, from + input to ground, is not needed.

GregGC 16th February 2004 06:02 AM

Quote:

Originally posted by Peter Daniel
Schematic calls for 50k pot as this what I had available. But 25K pot is even better (I hope it's log). In this case 22k shunt resistor, from + input to ground, is not needed.

Peter, I'd keep the 22k (or even 33k) res in case the pot starts behaving funny and you do't want the speakers to see DC spikes.

Nuuk 16th February 2004 07:38 AM

It looks like it would do temporarily !

Never mind what the circuit calls for, an amp of this quality deserves a quality volume control, either a stepped attenuator or a law faked cermet pot.


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