DC Gall's vernier potentiometer
- Made:
- South Norwood
DC Gall's vernier potentiometer. Type 4363D. No 128948. 50 ohm per volt. (Wendee Hall, South Norwood, London SE25)
DC Gall's vernier potentiometer. Type 4363D. No 128948. 50 ohm per volt. (Wendee Hall, South Norwood, London SE25)
