Recommendations for Dual-Gang Pot for Vol/Gain on Preamp

[PRoper]

Hello all,
I built a single channel amp with the cascaded V1a V1b similar to the 2204 Hi Input. The gain comes on a little early for my taste and thought I might modify it with a dual gang pot that would straddle V1b, in hopes that it would give me a little more sweep for the clean side before starting to break up. One pot for the Vol off the V1a output (normal vol), and the other pot would replace the 470K/470K volatage divider after V1b. Anyone messed with this before and have a good recommendation or schematic to reference or any other suggestions?

[cbass]

Like this¿

[mhartman]

Like this¿

That's totally what I was thinking. I really like my SD60.

[Alan0354]

If you really want two volume, I would look into a dual pot BUT with separate control for each volume......or two totally separate volume pot. You really get different sound adjusting the two volumes, you can lower the first one and crank up the second, or vise verse. You get different sound.

[PRoper]

If I use two separate pots would the second pot work better as a 500K or should I stick with 1M for both? Which works better tone and impedance wise?

[PRoper]

Like this¿

Thank you for the Schematic, on the first 500K Pot you have a 220K in front and a 100K to ground what do these acheive or what is the purpose?

[pops]

Look for concentric pots, i have used them several times works well.

[Smokebreak]

Like this¿

Thank you for the Schematic, on the first 500K Pot you have a 220K in front and a 100K to ground what do these acheive or what is the purpose?

220k//470p, as well as the 560K//.001 are treble peaking networks. This is what gives Marshall types those upper mids they are known for. IIRC the Naked only has 1 network there. You'll find a typical 470K//470p on Marshall schematics .
The 100k to ground off the first gain pot means the voltage division that pot provides will always be a little hotter than the other gain pot, proportionally speaking.