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Old 27th Jan 2021, 6:14 pm   #11
GMB
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Join Date: Aug 2003
Location: near Reading (and sometimes Torquay)
Posts: 3,086
Default Re: Simple valve oscillator for a valve organ?

Quote:
As I want mine to be polyphonic, each note would need to have its own oscillator and a set frequency. I could do a monophonic type with just one oscillator but it seems a waste to have 2 octaves and not able to play anything
OK, well its an awful lot of circuit. With valves you will also be needing a pretty big PSU. LC oscillators seem a popular solution, I presume because they can be made with low drift – but that's a load of big chokes to make too.

You might want to do the maths and calculate the cost before deciding to use ICs.
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