As always, a very illuminating presentation by Alan. I wish my oscillators were that stable!
And I couldn’t help thinking how much simpler this circuit is in comparison to the DDS devices we’ve been talking about.
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Bill – the oscillator isn’t *that* stable. Being open and unshielded, it varies a lot with surrounding objects. If you listen to it on a receiver – it sounds like a Theramin when you wave your hand around it!