JK 4037 Flip Flop with Reset (CB25121E)

We found this circuit in the April 1988 issue of Radio Electronics magazine. The circuit can be reset electronically.

Transformerless Power Supply (CB1569E )
In applications where there is no danger of any contact with live points on the circuit by the...
Sequential Cruiser (CB16479E)
This is an LED effect that we found in a 1988 documentation. The circuit drives LEDs with a...
TTL Schmitt Trigger 7400 (CB13777E)
In the figure we have the way to implement a TTL Schmitt trigger for 60 Hz signals, obtaining...