Institute Newton C. Braga

Circuit Bench

Signal Injector (CB10325E)
This circuit is from a Poptronics, American magazine from August 2000. The circuit can be...
Emitter Coupled RC Oscillator (CB6350E)
This circuit was found in an 80's Radio Electronics. The circuit makes use of general purpose...
Modulated Light Receiver (CB14749E)
We found this circuit in the 1960 Mullard transistor reference manual. The phototransistor can be a...