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.
This circuit was obtained from a 1967 General Electric documentation. The circuit makes use of...
Other operational amplifiers in the series, such as the MC34072, MC34074, MC35071, MC35072,...
We found this circuit in a 1973 technical documentation. The circuit is implemented with the doors...