Institute Newton C. Braga

Circuit Bench

Regulated power supply (CB21777E)
This simple regulated power supply was found in a 1977 documentation. The zener diode determines the...
MOSFET VHF Amplifier (CB7473E)
This circuit was obtained in a 1977 Radio Handbook. The transistor is from the era and the coils...
transistorized differential amplifier (CB25639E)
This circuit uses matched transistors. The circuit is from Electronics Now magazine and has a...