Up for sale here is this NOS vintage Radiohm stereo (dual) 250k ohm audio (log) taper potentiometer. This is marked 220k but tests around 250k-300k ohms.  It has a loudness tap on each channel and is perfect for replacing vintage loudness-tapped volume controls.  The channels are fairly closely matched.  I tested one of these and the channels tested at 304.5k ohms and 295.5k ohms, and the loudness taps were at 33.5k and 33.51k ohms.  This is log taper but it seems to be a little bit towards a linear taper--the increase isn't quite as abrupt as a normal log taper pot.  This has a long 1/4" round shaft.  Please see my pictures for details and measurements.

US shipping and handling is $6, and international is $20, no matter what quantity you buy. All my small parts are set up for combined shipping, so just use the "add to cart" feature and then check out all at once, and it will combine shipping. If you have any questions, please ask.

I have more pots and other vintage electronics listed--feel free to take a look!