COIL FIELD EXAMINER (QUICK, CHEAP, EFFECTIVE).

[Aurificus]

Up-date

Thanks everyone for all the input, I'm still trying to digest it all.

A quick up-date:

70 turns of #30 AWG insulated Cu wire on a ball-point pen case produced no detectable AC voltage.

A dig around in in "the box" turned up a tiny tape head from a telephone answering machine (7 X 6 x 5 mm....the head, not the machine) The type that used tiny cassettes. Stainless steel housing, almost invisible to the $57 detector, unless moved quickly through the field.

Only 3 wires ( playback, record & a braided common) measuring 430 ohms & 250 ohms, both together 160 ohms.

1/430 +1/250 = 1/158 ( Isn't science wonderful?)

The flouro. lamp generates 500 mV, the detector 100-200 mV, my great hairy sweaty body around 250 mV.

Thanks WM6, I'm now much advanced, and still satisfying my criteria.

Thanks B^C for the tip on common mode filters, a google search revealed way more info than I have time to digest at present. (I got Tx & Bucking coils on a common core!!!) I have found a DC cable from an old laptop power adapter with what I assume is a filter moulded into it.
I will experiment, if it works, the criteria is satisfied again, life is good.

Esteban, your willingness to share your experience and insights is always valuable. You are a Gentleman, thank-you. See you in LRL soon.
An old friend of mine, with a number of patents, told me that they are an effective, if expensive, means of achieving immortality. The records, and your name, will be maintained for as long as civilisation survives. As for making money with them....??

cheers, Aurificus

[Esteban]

Thanks everyone for all the input, I'm still trying to digest it all.

A quick up-date:

70 turns of #30 AWG insulated Cu wire on a ball-point pen case produced no detectable AC voltage.

A dig around in in "the box" turned up a tiny tape head from a telephone answering machine (7 X 6 x 5 mm....the head, not the machine) The type that used tiny cassettes. Stainless steel housing, almost invisible to the $57 detector, unless moved quickly through the field.

Only 3 wires ( playback, record & a braided common) measuring 430 ohms & 250 ohms, both together 160 ohms.

1/430 +1/250 = 1/158 ( Isn't science wonderful?)

The flouro. lamp generates 500 mV, the detector 100-200 mV, my great hairy sweaty body around 250 mV.

Thanks WM6, I'm now much advanced, and still satisfying my criteria.

Thanks B^C for the tip on common mode filters, a google search revealed way more info than I have time to digest at present. (I got Tx & Bucking coils on a common core!!!) I have found a DC cable from an old laptop power adapter with what I assume is a filter moulded into it.
I will experiment, if it works, the criteria is satisfied again, life is good.

Esteban, your willingness to share your experience and insights is always valuable. You are a Gentleman, thank-you. See you in LRL soon.
An old friend of mine, with a number of patents, told me that they are an effective, if expensive, means of achieving immortality. The records, and your name, will be maintained for as long as civilisation survives. As for making money with them....??

cheers, Aurificus

Aurificus, thanks very much. Many patents don't poduce money, anothers for massive popular consumption yes...