Blending 2 capacitor values with a pot?

[Sigesmundninja]

I'm going to build myself an attenuator using a L-pad to tame my Dr Z maz 18. I've learnd that when attenuating a signal you loose highs and the schematics I follow use a 2 pole on-off-on "treble"-switch (2 diffirent caps) before Lug 2 of the L-pad (to filter out bass?). I was thinking i could use a potentiometer to blend one small and one large capacitor instead of the on-off-on switch. Unfortunatly I dont know how to execute this. Could someone tell me how this should be wired? What pot and cap-values that might work?

[Feral Feline]

Necro-bump.

If you haven't already figured it out by now...

Download this PDF, Joe Gore's got you covered.
http://www.seymourduncan.com/tonefiend/wp-content/uploads/DIY-Club-Project-2.pdf

That should show you how to wire it up, more or less. He's using a B100k pot (linear). You'll have to play around with cap values to see what works for your needs. Use sockets on a chunk of vero-strip, or perf-board. I suggest starting with the stock cap values and maybe you're done; but if it still isn't enough, start swapping caps.