25k pot for Gainclone?

giambi77 · 16th February 2004, 03:45 AM

I am following this design by Peter Daniel:

And I have 2x 25k of these pots:

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, 03:55 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, 07:02 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, 08:38 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.

16th February 2004, 03:45 AM	#1
giambi77 diyAudio Member Join Date: Dec 2003 Location: Northern CA	25k pot for Gainclone? I am following this design by Peter Daniel: And I have 2x 25k of these pots: 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?

16th February 2004, 08:38 AM	#4
Nuuk diyAudio Member Join Date: Feb 2003 Location: Somerset, SW England	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. __________________ The truth need not be veiled, for it veils itself from the eyes of the ignorant.

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16th February 2004, 03:55 AM	#2
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	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.

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