Heath Metal Detector

[John Backowski]

This message is for Marty, who inquired about a Heath metal detector. I don't have the original but I did build one from the excellent instruction manual reprint that I received from Heath Corp. (phone # : (616)  925 - 5899)
I am aware of three models offered by Heath, the GD-348, GD-1190 and GD-1290. I chose the GD-1190 due to its "off-resonance frequency" theory of operation (I could comprehend it). I think the GD-1290 is an upgraded version of the GD-1190 and the GD-348 design is unknown to me but I do know it is the least expensive of the three. I have all the information on the GD-1190. If you are interested, email me: johnski at ix.netcom.com
John Backowski
(The only other Heath list user interested in their metal detectors.)
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