Alan Douglas adouglasatgis.net wrote:
The pot is nonlinear and the dial scale is also, so the resulting
curve defies logic. But all Hickok bias pots have been the same,
pretty much, since the 1930s. There is -40V across the whole pot, and
-3V at a dial setting of 20 (22 for the military TV-7).
I am thinking that if you could use a standard antilog or log pot
(would a 5K audio taper be close enough?) you could then change the dial
scale accordingly. If you are willing to change the dial, you only have
to get reasonably close to the original taper.
"C'est un Nagra. C'est suisse, et tres, tres precis."