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.
The circuit is from the National Semiconductor Linear Applications Handbook published in 1994. The...
April 2017 - New Texas Instruments DRV8x brush motor drivers for 1.7 to 8 A currents and voltages...
The indicator for this circuit is a mini buzzer with a 1.5 V oscillator. The circuit can also be...