Institute Newton C. Braga

Circuit Bench

Simple voltmeter (CB23544E)
This is the circuit of a sensitive voltmeter using a difficult-to-obtain 5 uA full-scale...
4A Voltage Regulator LM3900 C (CB15260E)
Other amplifiers of the series like the MC3301, MC3401 and LM2900 can be used in this circuit. We found...
144 MHz Transceiver (CB23613E)
This transceiver is also low power, but this time, it can generate signals in the 144 MHz band. In the...