Low voltage dimmer (CB7855E)

This circuit was found in a 90s 303 Circuits. The circuit operates in a 200 Hz switching mode and the output current reaches 5 A.

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Optical tachometer (CB9349E)
We found this circuit in a 1970 publication by General Electric. The components can be changed...
Symmetrical 15 V Power Supply (CB19622E)
This source is used to supply circuits with operational amplifiers, being originally created for...
Crystal divider by 10 (CB6831E)
Suggested by American documentation from 1968, this circuit divides the frequency of synchronized...