This transistor curve tracer was described in a December 1969 Radio Electronics article. It consists of a ladder-type signal generator that applies stepped voltages to the transistor under test.
Found in an English publication, this control is intended for 220 V mains powered motors. However, it...
This circuit was taken from the 1974 Ferranti transistor manual. Transistors are common types at...
For someone who wants to take advantage of a double transformer in a good power supply, we found...