470KA stereo 16mm split shaft pot?

[spy]

I'd like to replace the master volume on a Hayden Mofo with a PPIMV. But only a 16mm pot will fit inside. I don't want to ruin the PCB.
The problem is that I can't find a 470KA stereo 16mm split shaft pot! I find only blend pots or stereo around 10K or 100K.

Does anyone know a source? BTW, if it's a long shaft it'll be better!
Thanks!

[oc disorder]

dual 500lin 16mm (90c)
Rotary Potentiometers
closest I can find..
I have bought from them they are reasonably prompt

or if you are following the "Lar mar/ layout" mod thing.. http://music-electronics-forum.com/t21718/
perhaps you could get a replacement part for a trace elliot (well they are distantly related to Hayden)
from http://www.britishaudioservice.com/s...e_potent.shtml
B250k 73-POT-B250k- DG
Smooth Taper, Dual Gang Potentiometer
Used in Trace Acoustic, Bass and Guitar Amps
$8.00 USD

[spy]

Thanks oc disorder! Unfortunately a 250K pot isn't the best for an EL84 amplifier. It has to be a 470K. I'll try to find a logarithmic pot otherwise I'll go with a linear.

[Ronsonic]

I see a maximum grid resistor spec of 300K for that tube.

Don't know why a 470K could possibly be better or why it would matter to the power tube as long as it was within spec. The driver tube might have an opinion.

[spy]

Yes, it's 300K for fixed bias and 1M for cathode bias. Mofo is cathode biased with two pairs of EL84s. I prefer to find a 470K instead of 250K. But still trying to find one!