This special purpose IEC Power Supply is designed for the IEC "Mass Of Electron" experiment (AP2120-001). It is powered by 220/240V. Mains.
The outputs are:
250V.DC. Fixed voltage, at about 1mA, 12V.AC. at about 1A, 0.1A - 2A adjustable and regulated current. The high voltage is for the anode connection of the Magic Eye tube, the 12V is for the tube's heater and the regulated current is to control the current and thus the magnetic field in the Air Cored Solenoid (EM0090-001). A switch permits the large meter to monitor either the regulated current or the output volts.

OTHER USES:
Although this power supply is designed specifically for the “Mass of an Electron” experiment, it is a useful general purpose power supply where a preset constant current is required through a load, up to a maximum of 2 amps and 25V.DC. Some experiments in electronics require such a supply for producing special waveforms and for performing certain experiments on capacitors and charging

Instruction Sheet included.