MS-663 PVG PNP NPN TRANSIST CORCHARACTERISTIC APPARATUS

Used to draw input as well as output characteristic curve of a P.N.P.
Transistor AC 128. It has two regulated power supplies of its own &
four metres. Complete circuit diagram is provided on the front
panel. Complete with instruction manual.
Specifications
Input : 230 volt AC
Output : 0-9 volts at 50 mA
Stability : ± .05%