Institute Newton C. Braga

Circuit Bench

FET MW Radio (CB12499E)
I found this circuit in a 1979 documentation. The phone must be at least 1k magnetic or crystal...
50 mA Battery Charger (CB878E)
This simple circuit is designed to charger AA or AAA Nicad batteries. Current can be changed...
5 V to 400 V Converter (CB1478E)
This circuit converts voltages from 5 to 12 V at voltages of 100 to 400 V. The transformer has a...