There you than this simple

[yhl]

[maikl]

Yes. It is shown EPE Bounty Treasure Hunter (160mm-240mm detects old Victorian peny) is better than the matchless Metal Locator (110mm-150mm) is the author of Thomas Scarborough. I've already told you to make the best metal detector CCO: 160mm-250mm detects old Victorian peny (author Thomas Scarborough is the same) easy to create and is not as important as the position of the coil in the picture.

[technos]

Thanks

Thanks yhl for posting, and thanks to maikl for recognizing the source.

The author suggests a couple of improvements for these designs on his blog, which could put them on par with the CCO design. But I continue to have little time to build/test circuits at the moment - perhaps in a couple of months.

[yhl]

EPE Bounty

http://thunting.com/smf/vlf_designs/...-t15096.0.html

[maikl]

If you want to do EPE "Bounty" necessarily put the stabilizer 7812 (power supply battery 2 * 9V = 18V). But you will hardly achieve more than 160mm for the 25mm coin.

[yhl]

请。 CCO的你说给我的金属探测器电路PDF格式

[maikl]

请。 CCO的你说给我的金属探测器电路PDF格式

Please note: you must to put the "crystal Earpiece "and not" ordinary Earpiece "

[yhl]

How self-made crystal headphones or replaced with low-impedance

[maikl]

Crystal Earpiece (Piezo) you can make from: postcard to play, alarm clock, toys ...

[yhl]

Thank you

Who JETCO Mustang circuit? PDF

[yhl]

You have your own blog?

I have thought that the CCO circuit front to the back of the TLO71 not. With a CD4013 with for mixers,

[yhl]

[报价= yhl; 112711]我认为，CCO的电路前到TLO71没有回来。与同一个混频器CD4013，[/报价]

[cosmonat]

did someone actualy build the EPE bounty detector?