For accurate work, in polished teak wood box and bakelite panel figured in white. Split brass contact blocks hold precision cut, interchangeable plug having moulded black bakelite fluted tops. Coils of constantine wire, double silk covered are wound co-efficient. Coils are connected with double nut system.
For triode valve experiments, input 230 volts a.c. with built-in power supply, fitted with triode valve.
Provided with three meters for HT voltage, output current and bias voltage.
Output :H.T. : 0-300 volts d.c. at 30mA, continuously variable.
Bias : 0-25 volts d.c. at 5mA, continuously variable.
L.T. : 6.3 volts a.c.