OSVTTC – Results 1

11/08/2005 – Testing the oscillator.

This part of the project actually worked first-time ! The first oscilloscope picture shows the oscillator output at the bottom and the power amp outout at the top. Voltage level shows 100v/cm, this is at the lowest frequency and clearly shows the poor waveform associated with this simple circuit design. The top waveform is more square-wave like due mostly to some severe clipping. It would most likely sound absolutely horrible as a sound amp but all i need is to switch the main tube on and off quickly, so it should work.

osvttc_scope2

Sort of square

This picture below shows the same outputs again, but this time at it’s maximum frequency of around 500kHz. Note the change in waveforms.

osvttc_scope1

500kHz

Altogether a satisfying project on its own, now to build the noisy part !

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