Institute Newton C. Braga

Circuit Bench

Microwave Field Strength Meter (CB5187E)
The sensor diode used in this circuit is the common type of germanium. Experiments may be made...
Interface SCR and Relay (CB12106E)
This interface was found in a Modern Electronics magazine from 1990. Although the circuit is...
Mixer 741 (CB16263E)
In the figure we have a circuit of a very simple audio mixer, which makes use of an operational 741.The...