Institute Newton C. Braga

Circuit Bench

Impedance Adapter (CB18282E)
This amplifier stage was found in a 1956 Sylvania manual and has an unusual configuration with a...
AC Amplifier Using the 741 (MSB038E)
In the circuit shown by figure 1, a10 mV AC signal applied to the input produces a 1 V signal in...
Tuning Indicator (CB1468E)
This circuit was obtained in 1974. It serves to indicate the tuning of stations on a common...