Popular and effective overtone oscillator !
The Butler oscillator.
Tested on a breadboard .
Frequency stability is acceptable with this unshielded circuit.
The warm up drift in range of 100 - 200 Hz.then after it was stable with
slight drift of 2 to 3 Hz.
No neutralized inductance use in parallel with the crystal.
1 comment:
Ohhh there is nothing better than using the old cheese boards and building some amazing circuits!
- David
www.isatnetworks.com
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