Hello everybody I am from China, My name is Yue Hailin I like metal detectors

[yhl]

Matchless Metal Locator

This project is possibly the simplest induction-balance type detector you can build. Add to that a very detailed construction article and you have an excellent beginner project. Might also be a good probe circuit.

[yhl]

Thank you all I had to find a pulse sensor is unparalleled ICM7555 hope Thomas has 555 more simple pulse induction metal detector circuit
unparalleled　ＩＢ　metal detector circuit

[Krzysztof]

For beginners the best "CCO metal detector," he can be measured with the "IB metal detector" is much better and simpler than BFO. I think this CCO:

Long, long ago I was 14 years old and I had to learn this in school physics. Then it was called the CCO inductively coupled generator and was sponsored name Meissner. Of course, the lamps. Yes but that was long ago and in Europe. Today we have other times, Europe patents corresponding curvature of bananas ... Just me, the memory and passion for radio equipment have been.
Best regards Chris

[Qiaozhi]

大家好我是来自中国的 我叫岳海林 我很喜欢金属探测器.但是我只是初学者.我看到BFO的简单我所以想做个玩玩希望大家给些示意 图 让我能拥有个简易金属探测器 我不懂英文 我只能用古歌翻译简单的英文 谢谢大家

海林，您好！

BFO 比 PI 不好。这个探测器最好 －》http://www.geotech1.com/cgi-bin/page...head/index.dat
你是工程师吗？

乔治

[maikl]

For beginners the best "CCO metal detector," he can be measured with the "IB metal detector" is much better and simpler than BFO. I think this CCO:

[Carl-NC]

Qiaozhi, looks like you have someone to talk to! Yue Hailin, a BFO is a simple way to start but it will not take you very far. Instead, consider a pulse induction which is also simple to build, but performs much better and has a better future.

[yhl]

我是中国的很高兴认识大家

大家好我是来自中国的 我叫岳海林 我很喜欢金属探测器.但是我只是初学者.我看到BFO的简单我所以想做个玩玩希望大家给些示意 图 让我能拥有个简易金属探测器 我不懂英文 我只能用古歌翻译简单的英文 谢谢大家

[yhl]

Hello everybody I am from China, My name is Yue Hailin I like metal detectors. But I just novice. I saw the BFO simple reason why I would like to make a play with hope to the more schematic so that I can have a simple metal detector Device I do not know English I can only use simple English translation of the ancient song Thank you