Potentiometer D-72-A

Potentiometer Type D-72-A

For all measurements based on potential difference.

Measures from -0.01 Volts to +1.92 Volts on three ranges of x1, x0.1 and x0.01.
Smallest subdivision x0.01 range, 10 microVolts.
Small negative reading ensures an absolute zero volts position.
Accurate current control by stud rheostat and slide wire.
Separate standard cell balancing circuit.
Terminals for two external circuits selected by switch.

Accessories for use with this instrument:
Volt ratio box                   Type A-202-A
Weston standard cells     Type D-113-A
Galvanometer                  Type D-41-A
Lam. Stand.                     Type D-74-A
 

In questo link sono elencati 29 modelli, di cui 24 con immagini e 1 con schemi.
Elenco delle radio e altri apparecchi della Muirhead & Co. Ltd.; Beckenham