Null Indicator (CB21930E)

This bridge was found in a Raytheon transistor manual from the 1960s. The transistors are germanium from the time.

Inverter with Voltage Doubler and Power MOS (CB15901E)
This circuit is suggested by Motorola and allows to obtain a much higher voltage for switching a power...
Simple Crowbar (CB5883E)
This protection circuit short-circuits a load when the voltage exceeds a certain value causing the...
Up to 200 MHz Oscillator (CB4344E)
This crystal-controlled oscillator can generate signals as high as 200 MHz. The L1 coil is made up...