Institute Newton C. Braga

Circuit Bench

Car Alarm Simulator (CB18821E)
It is a simple blinker that simulates the action of an alarm when installed on the dashboard of a...
Mini Electronic Organ (CB12612E)
The circuit is from a 1978 publication and the transistor may be the BC558. The transformer is...
Power Sypply for transistors (CB23574E)
This simple unregulated circuit was found in a Radio Electronics from June 1964. Note that the...