LM3600 Ring Modulator (CB25147E)

This circuit is a four-quadrant multiplier using an LM3900. The circuit was found in the July 1988 Radio Electronics magazine.

| Clique na imagem para ampliar |

Varicap Variable Frequency Oscillator (CB4587E)
The great advantage of the circuit shown in the figure is that its frequency is controlled by a...
TTL to MOS Converter (CB5106E)
This circuit can be used as a shield for microcontrollers. The circuit is from American...
Transistorized Oscilloscope (CB11568E)
Mounting an oscilloscope is the dream of many of our Internet users, although it comes up against...