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 for Laser Diode power was found in a 2005 Linear Technology manual. In the diagram...
This operational amplifier circuit with power output using complementary transistors was found in a...
This circuit uses germanium transistors and has a push-pull output with transformers. The circuit is...