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two transistor sine wave oscillator 20 Hz - 19,2 KHz

ByKo Tilman

Schematic, layout and pictures from a two transistor (Wien bridge) sine wave oscillator (prototype) that works between 20 Hertz (15 Hertz) and 19,2 KHz. Easy to make, a real beginners project. Including a schematic from the power supply and two schematics from 1 transistor amplifiers/buffers to which the generator can be connected. The circuit works on 12 Volt. Copyrighted content. UPDATE 4 november 2022: I re-tested the circuit and found that not all 6 Volt/0,6 Watt bicycle lamps work. When the sine wave generator does not want to start replace the 6 Volt 0.6 Watt bicycle lamp with a wire wound resistor of 100 Ohm. You can also use smaller capacitors (1N and 560 pF, must be ceramic types) to go to somewhat higher frequencies.

Details

Publication Date
May 6, 2013
Language
English
Category
Engineering
Copyright
All Rights Reserved - Standard Copyright License
Contributors
By (author): Ko Tilman

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Format
PDF

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