Dual Sensor (CB21521E)

This circuit, with two operationals, was obtained from an old American publication. Operational amplifiers can be of modern equivalent types.

| Clique na imagem para ampliar |

Voltage Limit Monitor (CB21520E)
Obtained in an Electronic Design from 1968, this circuit has the voltages determined by the zener...
Semi-isolated Colpitts Oscillator (CB25554E)
This circuit was found in the February 1993 issue of Radio Electronics magazine. Some components depend...
27 MHz Modulated Transmitter (CB19450E)
This is the modulated version of the previous 2 W transmitter circuit (CB19449E). The circuit has...