geo greetings!!

Maybe someone will come in handy.

:)

To make the 707 gold gun work much better without the meter, you can touch the left side of the male banana connector (negative) with your hand to ground it and it begins to be more sensitive.

layout dosyasını tekrar yollarmısın

it's not that the true gold gun that's work, tell to Geo to post here his schematics :)

Why don't you do it yourself, maybe Geo will help if he deems it necessary. Personally, I am not aware of any other schemes for the golden pistol.Unless there are attempts to do this on other chips.But the principle itself remained the same.

The file is the same as it is in the post above. The instability of the job was due to my carelessness . The legs of the microcircuit were poorly soldered.When I re-soldered and removed the flux from the board, the receiver began to work without unnecessary noise.

LM358 is considered an alternative and is equal to LM324


I don't know. Why are sensitive random access general purpose receiver circuits used? To detect treasure fields.

There is a very simple sensitive radio circuit which is a 10 transistor audio receiver, amplifier and decoder circuit compressed into one....

TA7642. operates on very low current to prevent noise....

Working frequency range 150kHz-3MHz LW/AM/SW1 I don't know if such circuits can be used.