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 Code Switch (CB18221E)
This circuit activates an output, which can be a lock, only when a card containing the programmed code...
Inductive Signal Follower (CB12176E)
This circuit was found in Popular Electronics from 1993. The 1458 consists of a double 555. The...
Shift Register Using the 4013 (CB156E)
This is a Serial In - Parallel Out or Serial Out [SIPO or SISO] shift register using the...