Universal speed control (CB20783E)

This control, which may appear in other versions on this site, was found in documentation from the 1970s. SUS is an uncommon component today.

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Digital Speedometer (CB17306E)
This circuit, found in a 1986 documentation, uses an optical sensor to count pulses and, in its...
Darlington Photo Amplifier (CB8316E)
Found in General Electric's 1969 documentation, this circuit uses two Foto Darlingtons to control...
12 V inverter (CB8715E)
The output voltage of this inverter depends on the employed transformer. The circuit is from a 90s...