Schmitt Trigger 7400 (CB22419E)

This low hysteresis circuit was obtained from old documentation. The circuit must be powered by a voltage of 5 V.

Parallel Transformers Power Source (CB20205E)
This configuration (somewhat critical, as the imbalance of characteristics between transformers can cause...
Car Alarm Simulator (CB18821E)
It is a simple blinker that simulates the action of an alarm when installed on the dashboard of a...
Electronic Christmas Tree (CB17040E)
This conventional LED effects circuit uses integrated CMOS. Today we can achieve the same effects...