The circuit does not work, and to change the NTE312 FET MPF102, the LM308 TL081 also change, then change the TL082 to TL062 and nothing my little sound of speaker is very low is nothing I declare myself defeated I declare myself defeated by this detector or may not work
change errors of 1 transistors nothing wait the coils unhardened. I have not even aluminum, are just flossing this is right?
change errors of 1 transistors nothing wait the coils unhardened. I have not even aluminum, are just flossing this is right?
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