Floating regulator (CB21776E)

This high current regulator was found in documentation from 1977. Transistors are types of power at the time. The circuit is suggested by Motorola.

Level change circuit with negative output (CB21597E)
Found in documentation from ON Semiconductor, this circuit provides a rectangular output signal with...
20 kHz counter with SCS (CB6614E)
We found this circuit in 1964 General Electric documentation. The circuit works with mechanical...
1 Hz Active Filter (CB6721E)
This very low frequency circuit was found in a 1964 Electronic Design. Transistors may be modern...