Windshield wiper tiner (CB9523E)

Found in old documentation, this circuit can be implemented even today with the use of a 2N2646 for the unijunction and a TIC106 for the SCR.

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Half-wave motor control (CB8020E)
This half-wave regenerative control was found in an old RCA manual. The circuit can be designed...
Locked Sensor Using Diac (CB13365E)
I found this circuit in a documentation about thyristors from the 70s. The circuit uses a diac...
Mini Timer (CB498)
Up to some minutes intervals can be obtained from this circuit. The circuit can use a lamp (or...