[earlyradios]

Every time I have a pot, switch or even a tuning shaft that I am scrapping I always cut off the shaft and save it. They are perfect for using as extensions with the little couplers but also they have the right type of machining for the knob you want to use. Most Philcos from the 30's have a D shaft but it is not the same as others. The flat is not as deep as you will see. the split fluted ones are especially handy because they are pretty hard to duplicate. Also one of each type I save in my tool box to use with a drill when polishing the knobs. Very handy indeed