Quick and Dirty Marx generator

Here is a fun little project that can make big, fat, noisy sparks at least 2 inches long, and can be built very quickly and cheaply.

Sawtooth wave generator

Sawtooth wave generators using opamp are very common. But the disadvantage is that it requires a bipolar power supply. A sawtooth wave generator can be built using a simple 555 timer IC and a transistor as shown in the circuit diagram.

A two tone generator to check the linearity of the components of a video transmission chain

The method of assessment of the linearity that is proposed here requires the use of a small two tones tones generator easy to build and a spectrum analyzer or a low cost discarded selective voltmeter.

Panner Waveform Generator

This device is a microprocessor controlled waveform generator that can be used for driving a voltage controlled stereo panner for music applications. Panning is simply the movement of a mono audio signal between the left and right channels of a stereo sound system.

Frequency generator

Tri-Waveform Generator

signal generator to test circuits, frequecy range is 20 to 20 kHz, outpus sinewave, triangle wave and square wave.