Wanted : Dead or Alive !! Metal Detector schematics and circuit board photos !

Hello Everyone !!..... For almost 10 years I have been collecting Metal Detector schematics and or circuit board  photos . There are Many old discontinued Metal Detector models that were manufactured in large quantities , that are still in existance !! They might be in someones garage or hidden in a basement or Attic !! Broken or working they are wanted !! I have a list of the ones I would love to have or see again , close-up !!  If someone can take a clear digital photo of the circuit board or even post a schematic it would be Awesome !! This is for metal detectors only . I will try to post a picture to the list , if I have one for that model . Anyone can add to the list , the years are passing by , so lets try to recover or save history on some "Classic and forgotten Metal Detectors of the past ".................Regards........Eugene52

1. Whites Liberty Di
2. Tesoro Conquistador
3. Gold Mountain Cobra I
4. Very Rare Discovery Teknetics TEK S/T 6.92 khz
5. Compass X-200 Challenger  6 and 14 khz dual frequency
6 Bounty Hunter Red Baron 7
7. Radio Shack Discovery 3

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Let's add the Redheat XD 17, not sold anumore...
Christian told it was one of the best...
So sad it disappears

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Hays Electronics MarkI Mark II TR Metal Detectors

The Hays Mark II detector, is a TR type detector that operates somewhere around 100 Khz in frequency.

Powered by a single 9 volt alkaline transistor battery, the Mark I-II has only one control, an on/off/ tuning control.

Adjustment is as simple as turning the detector on and rotating the control until a slight threshold signal is heard and begin searching. The control unit is made of plastic, and the coil is, 5.5 MI and 8 MII inches.

The Mark-1 Metal Detector was designed and manufactured by Bill Hays of Hays Electronics in 1962, using an 8-inch search loop, the first of that size on the market at that time. The standard size in 1962 was the 11-inch loop.

In 1963 Hays Electronics introduced the first 5.5-inch loop on the the mark-2 Metal Detector. It was very sensitive for small objects and it had a depth range of 30 inches on large objects.

Today about 70% of all mark-1 and mark-2 metal detectors are bought by utility companies. Most utility companies want an all-metal detector and have no need for a discrimination detector.

In sales the Mark-1 and Mark-2 metal detectors have sold over 70,286 machines as of December 23, 2001.

No longer made:
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Any chance anyone has a photo or picture of insides of a Sunray Dll meter, I think they have quit building this also. I need the wiring to the connector layout.

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Hello All !!! Here are two more , to add to the Wish list !!!

1. Schematic and correct sprint lay-out file of the CZ 6 . The only have a partial schematic and a incomplete sprint file image.
2. All I need is a PCB photo or a sprint layout of the Gold Bug Version I , not Gold bug II !!   

Two more for our "Most Wanted" List.......Thank-You.... .............Eugene52

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