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Re: A good start

May 14, 2019 08:16AM
Quote
Kickindirt
Gregg that reminds me of the time I brought my sifter. Spent a few hours sifting a area. Didn't find but a few small rivets and buttons. Then I took Ryans MMK with 5" coil and gridded a section next to the sifted area. Found a sheep ear tag with the MMK. Then I went over it with the Xp deus and found a 1854 dime. Just never know what lies beneath

That reminds me of circa 1963, when I built my first detector. Still can't find the plans I used, but I think it was from a Popular Electronics or Electronics Illustrated. Anyway, it was a BFO type, with a coil wound on a circular piece of plywood in the 8" dia. region. That was attached to an old broom stick handle. The transmitter was a simple oscillator, operating on the AM broadcast band. Next to the homebrew Tx you attached a transistor radio to the handle. You could listen to your favorite station, while hunting :-)

I lived in San Francisco at the time, and me and my buddy were all excited to try it in Golden Gate Park. GG Park is built on the sand that was 1/2 of S.F. to start with. My buddy brought along some chicken wire to sift with. He found several coins under benches and such, I found NOTHING ;-( Matter of fact, I don't remember finding anything with that 1st "detector" :-)

That detector operated between .55 and 1.6 MHz (that's Mega Hz, not Kilo Hz)! Very very high frequency - with virtually no ground penetration. Would of been good for small gold nuggets on top of the ground, but lo, there were none :-)
Subject Author Views Posted

Real world masking Attachments

glabelle 175 May 12, 2019 10:18PM

A good start

OregonGregg 73 May 13, 2019 10:05PM

Re: A good start

Kickindirt 62 May 13, 2019 11:20PM

Re: A good start

glabelle 60 May 14, 2019 08:16AM

My shirt pocket metal detector ... and that was the lightweight part.

Monte 74 May 14, 2019 11:55AM

Re: Real world masking

zincoln 73 May 13, 2019 08:10PM

Re: Real world masking

glabelle 65 May 13, 2019 08:16PM

Typical ghost town mask Attachments

glabelle 84 May 13, 2019 08:09PM

The Phantom of the ghost town is unmasked. cool smiley

UtahRich 82 May 14, 2019 07:48AM

Re: The Phantom of the ghost town is unmasked. cool smiley

Rdunzl 75 May 14, 2019 09:18AM

rin tin tin

UtahRich 58 May 14, 2019 12:37AM

Re: Real world masking

NWCindy 83 May 13, 2019 07:09PM

Masking . . . the odor.

UtahRich 62 May 14, 2019 12:43AM

Re: Masking . . . the odor.

NWCindy 56 May 14, 2019 07:16PM

Re: Real world masking

D&P-OR 73 May 13, 2019 07:20PM

Re: Real world masking

NWCindy 69 May 13, 2019 08:54PM

Re: Real world masking hope your broom is as strong as the magnets. Some big iron in those old sites. N/T

Kickindirt 64 May 13, 2019 03:14PM

How strong is that Magnet?

UtahRich 69 May 13, 2019 04:37PM

Re: How strong is that Magnet?

Kickindirt 71 May 13, 2019 06:16PM

The Magnets

glabelle 64 May 13, 2019 07:59PM

Re: Real world masking

UtahRich 70 May 13, 2019 03:02PM

There are so many variables, we have to recognize that there is no 'perfect' in "The Real World."

Monte 89 May 13, 2019 02:00PM

Re: Real world masking

Kickindirt 69 May 13, 2019 10:22AM

Re: Real world masking

Elbert 69 May 13, 2019 09:28AM

Re: Real world masking

glabelle 76 May 13, 2019 11:59AM

Will be interesting to watch.

OregonGregg 79 May 13, 2019 06:57AM

Indian Head?

glabelle 72 May 13, 2019 08:11PM

Re: Indian Head?

OregonGregg 64 May 13, 2019 08:59PM



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