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Function Generator Schematics and Circuits

Photo: Ion Generator Negative Ion Generator Negative
Are there some healthful positive benefits caused by being in an environment that contains negative or positive ions? Some reports suggest a wide range of benefits. This generator can be set up to generate either negative or positive ions; the builder's c
0 Comments - in Fun and Games
Schematic for an electronic circuit that behaves as an electronic version of a Roulette wheel. Flashed 10 LEDs in sequence with slowing pace until only 1 remains illuminated.
Shows an electronic circuit diagram (schematic) for a simple 10 Watt audio amplifier, using only 4 transistors.
Photo: Function Generator Op Amp kit Function Generator Op Amp kit
A very low cost and simple electronic circuit to generate square, pseudo-sinewave and triangular waveforms in the Audio frequency range. Uses a quad opamp LM348. Good educational kit.
0 Comments - in Telephone
Features a telephone ring generators, phone line in-use indicators and an audio interface circuit.