Semiconductor – P.N. Junction Unit

The DC Regulated Power Supply is an easy to use, low ripple high regulation precision instrument. Its unique feature is overload protection which makes it a safe power source for testing of electronic equipment..
Indication of: 3 1/2 digital panel meter voltage/ currentor analog panel meter
Accuracy of DPM: 0.5% + 1 digit
Line Regulation: 0.05% plus 2 mv(for + 10% change in mains voltage)
Protection: Automatic cross-over type of output characteristic from C.V. to C.C.
Power Source: 220 V AC + 10% / 50Hz.

This apparatus is designed to demonstrate Ohms Law. Consisting of a sheet metal enclosure with milliammeter, voltmeter, rheostat, push key and terminal posts..
Simply connect an external battery and a suitable resistance to the terminal posts, then press the push key. Readings are taken from the milliammeter and voltmeter and the resistance is calculated using Ohms Law.

* Current flow controlled through circuit by rheostat
* Colour coded connection terminals
* Scratch resistant enclosure
* Circuit diagram printed on enclosure to aid understanding