Check your junk boxes and local hamfests for the following Heathkit parts. I'm especially interested in the set-screw version of these knobs (shown on right) but will take either. They're dark green in color and were used on the HW100/HW-101, SB100/101/102, SB30x/40x and SB614/634 equipment lines.

Not to be confused with the Yaesu version of such, which is made of black plastic, has a white indicator line on the paddle and uses a 6mm ID brass insert (rather than Heathkit's 1/4" aluminum insert).

Finder's and aggravation fees gladly paid.

Heathkit-Paddle-Knobs.jpg