Institute Newton C. Braga

Circuit Bench

Binary Counter (CB6139E)
This General Electric circuit is from the 80's. The PUTs used in this meter are not common...
Remote volume control (CB23927E)
This wired control circuit serves both volume and balance between channels. We found it in Radio...
Signaling alarm (CB20532E)
This circuit was found in a publication from the 50's. The circuit uses germanium transistors of...