BFO
Topics
[2] karl von mueller's "little monster" BFO
[3] Sensitivity of a colpitts oscilator...
[4] Discriminating BFO detector
[6] whites CM II
[7] Simple metal detector with a CD4011
[8] ETI561 BFO
[9] make loop
frequency lock due to poor design
pic Microcontroller based pinpointer circuit
Quiz: Best circuit for search oscillator
VLF BFO VERY POSSIBLE..........
treasure hawk too high a frequency?
how to duplicate the arado 90 vla 9khz.........
programable bfo detectors..........
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