Institute Newton C. Braga

Circuit Bench

Hybrid millivoltmeter (CB23546E)
We found this circuit in a Radio Electronics from December 1963. The circuit combines valves and...
100 Hz High Pass Filter (CB12575E)
The filter shown in the figure is suggested by National Semiconductor having a cutoff frequency of 100Hz...
Burst Generator (CB6072E)
This circuit was found in a Signetics documentation from the 1980s. The integrated is a PLL and...