Heathkit gr 1290 vlf metal detector. heathkit groundtrack gr1290 vlf metal detector heathkit groundtrack gr1290 vlf metal detector all resistors are 14 watt, 5 tolerance and all capacitors are in microfarads uf unless marked otherwiseoltages were taken with a 9 volt supply and a setting with no.
Read MoreHeathkit groundtrack gr1290 vlf metal detector. heathkit groundtrack gr-1290 vlf metal detector all resistors are 14 watt, 5 tolerance and all capacitors are in microfarads uf unless marked otherwise. voltages were taken with a 9 volt supply and a setting wi.
Read MoreRe heathkit groundtrack gr-1290 vlf metal detector reply 2 on april 17, 2014, 115327 .
Read MoreHeathkit ground track gr 1290 . heathkit gd groundtrack . re heathkit gd groundtrack reply 8 on aug, 125752 pm how good is this at detecting tiny nuggets a foot or so below the surface would be nice to find lots of large nuggets but in practicality the smaller ones are probably the way to search. maybe this thinking is flawed..
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Read MoreI am new to this forum hope someone can clear up my confusion about the three heathkit metal detector models, i.e. the gr-1290 the gd-1190 and the gd-1290 does anyone know the difference, like operating frequency, etc. also, are there modern kits available for a super vlf metal detector i can only find 40 years old schematics and descriptions.
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