NPN and PNP transistor tester (CB22146E)

This simple transistor tester was found in old English documentation. Suitable for general purpose transistors.

Function Generator (CB14114E)
The circuit is from the National Semiconductor Linear Applications Handbook published in 1994. The...
DRV8x Brushed Motors Driver
April 2017 - New Texas Instruments DRV8x brush motor drivers for 1.7 to 8 A currents and voltages...
Simple Continuity Tester (CB14989E)
The indicator for this circuit is a mini buzzer with a 1.5 V oscillator. The circuit can also be...