Are there any real digital bfo metal detectors ever made?
I didn't find much information about this Zenith Radio Corp..
There you is the complete document at "Alkuperäinen julkaisu" -> Save full document.
What if we hook coil oscilator circuit directly to microcontroller which implements frequency counter, averaging, sound generating etc. What could be the maximum detection distance for a coin?
I didn't find much information about this Zenith Radio Corp..
There you is the complete document at "Alkuperäinen julkaisu" -> Save full document.
What if we hook coil oscilator circuit directly to microcontroller which implements frequency counter, averaging, sound generating etc. What could be the maximum detection distance for a coin?

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