![]() The original description can be found here This circuit has originaly been described by DH7AHN ,adapted and translated by myself for my usage. Supplied by a 9V battery, consumption 7-8 mA that gives 50 working hours with an alcaline battery. Spectral purity between 0,3 and 150 kHz > 50dB ! Ajustable output level, max around 100 mV pp on 600 Ohm, or 35,4 mV eff. ![]() Two tone generator 800/ 1000 Hz or 400/2600 Hz (jumper selectable) The main characteristics of this generator are : It also does not use any special and expensive component but only junk box components, or at least cheap ones ! The orinality of this description is that the tone generation is made by the use of a DDS and not a sine wave generator made with transistors or a special circuit.
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