5-Range Voltmeter with AC to DC Converter (CB25224E)

This digital instrument input circuit was found in the September 1989 issue of Radio Electronics magazine. The circuit has a high input resistance.

| Clique na imagem para ampliar |

1.2 W amplifier TBA820M 2 (CB15213E)
The output power of this amplifier depends on the supply voltage that can be between 3 and 16 V....
Audio Level Controller (CB25551E)
We found this circuit in the Radio Electronics magazine of February 1993. The main integrated...
Electronic injection (CB12933E)
Originally the circuit in the figure is indicated by National for the control of an electronic car injection...