Varible slope resistor

[jestaudio]

Can anyone see a problem in subbing in a pot in place of a fixed risitor, i have a v33 crate i,m modding with a 33 k slope ,i ve modded it witha resistor in series to up it to around 89k but need to find the sweet spot on this amp

[Colossal]

Nope, no problem. If you make this a permanent feature (with a knob on the front or back), you'll want to put a large value cap between the plate (or cathode follower) and the tone stack. This will keep DC off of the pot. I've done this mod before on hot rodded Marshalls. Typically it gets called Mid Shift or something like that. I usually use 33k fixed in series with 50-100kB. Works well and is useful for finding just the right amount of modern or vintage flavor.

If you're just dialing in an amp, just clip in the pot, find the spot and solder in a permanent value.

[Reeltarded]

I use either a 25k pot plus a 33k resistor or another combo that limits from 33k to 100k.

[jestaudio]

Nope, no problem. If you make this a permanent feature (with a knob on the front or back), you'll want to put a large value cap between the plate (or cathode follower) and the tone stack. This will keep DC off of the pot. I've done this mod before on hot rodded Marshalls. Typically it gets called Mid Shift or something like that. I usually use 33k fixed in series with 50-100kB. Works well and is useful for finding just the right amount of modern or vintage flavor.

If you're just dialing in an amp, just clip in the pot, find the spot and solder in a permanent value.

I,m pretty much looking to go in between clasic vox and marshall values and make it switchable, hence the variable intially till i get it dialed then use a isloated switch to go between the two slope values