Scaling resistance *up*

[cloudscapes]

hey all,

I have a circuit that uses a 1meg pot for frequency, and I would like to control it with an expression pedal with a range of 10k. my guess is most common exp pedals are around that range. the most obvious solution to me is using a vactrol, but that isn't super elegant and is a bit pricey at $5 a vactrol.

the other solution would be to change the circuit so that it uses a small pot instead of a large one, but I don't think it can be done with this one.

http://experimentalistsanonymous.com/diy/Schematics/Oscillators%20LFOs%20and%20Signal%20Generators/Simple%20Dual%20LFO.gif

though switched the 1uf with a 0.0033uf, and the 100k pot to 1meg


any ideas, aside from the vactrol one?