Offered is the Superior Powerstat 2 3/8 Inch Adjustment Knob, part no. DP8050 and its corresponding 4-Inch Aluminum Diameter Control Plate. The knob and control plate are clean and in good condition. The knob is of black bakelite construction. Two slotted setscrews remain in place for shaft mounting. Maximum Shaft Size: 7/16 inch. The painted details and graphics on the control plate are in good condition also. Both are well-made in the USA. Likely 1940's vintage. Pick up the knob and control plate for replacement use on your own variac. Mouse over the photo images to zoom in. Choose Ground Advantage to save shipping cost. NO RESERVE!! Thanks for looking.
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