FS PA15/PA20/PA150/PA200 Selector control knob

[Safetyman]

ACE Hardware in my town carries the same selector knob in their hardware racks used on the PA series sirens. I bought 2 and tried on my PA15 and PA150 and fit nicely on the switch. They had a different version of the GAIN knob (no pointer).
The SELECTOR knob costs $3.50 each.

Bill

 

[Wailer]

The PA15, PA20, PA15A, and PA20A typically have a split selector knob shaft and take a push-on type knob. The screw-on knob pictured above will also fit.