Institute Newton C. Braga

Circuit Bench

Changing a voltmeter scale (CB24261E)
The circuit shown is from a September 1973 Radio Electronics. It reduces the full scale of a...
Pulse Generator (CB923E)
Thes astable was found in old publication of 1968. The circuit uses general purpose germanium...
High Voltage Regulator (CB16989E)
The relationship of values between R1 and R2 determines the reference voltage for this circuit that...