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Offline ViracochaTopic starter
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« on: April 19, 2012, 10:38:29 am »
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Bumped into this 70's detector and I can't seem to find anything about it.  I have the old manual listed bellow but nothing else.

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http://media.whiteselectronics.com/manuals/Goldmaster%20Manuals/GM%2066TR%20Instruction%20Manual.pdf


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« Reply #1 on: April 19, 2012, 11:25:28 am »
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Yep, that's a OLD Puppy for sure.

As the name implies, it's  a TR Machine.   

Here is the Schematic.   

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http://www.geotech1.com/pages/metdet/schematics/GoldMaster66.pdf


Do you have the machine?

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Offline GoldDigger1950
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« Reply #2 on: April 19, 2012, 11:32:36 am »
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The TR stands for Transmit/Receive meaning that it is a machine that turns the transmit coil on, shuts it off, waits for a tiny fraction of time and then turns on the receiver to catch any return from metal. That happens between 5,000 and 300,000 times per second. This is a tired and proven technology and the machine could be a real gem. I've never owned on but those who own them swear by them.

Don't pay more than $40.00 for it but only if working. If not working, see about getting it free because repairs will cost more than it's worth.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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Offline ViracochaTopic starter
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« Reply #3 on: April 20, 2012, 11:08:53 pm »
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lol thanks for the info

J.

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