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Hair Brained itea

silversmith

New member
Anyone ever fooled around with this? A TR or VLF detector's biggest problem is the way it provides the audio note you listen to when it finds a target. And, that problem is that it takes about 6 db's of positive change before you can hear the difference. Now, Bfo detectors get their name 'cause they beat 2 oscillators together.....you hear the difference as a beat note. They get their sensitivity because you can hear a minute change in the frequency of the beat note. I wonder if you sampled the audio output, and fed that into "Voltage-controlled Oscillator" into a amplifier then to your headphones. You'd then have the advantages of both unit. I'm getting interested on "Nugget shooting" with my old but cool Big Bud 220-D but 'aint no Minelab :-( in my future.
Any comments?
 
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