Surf pi detector-MOD

[scs-bg]

Full resonance. By a small shift around the resonance of the receiver, the phase of the received signal is also determined. It must be obtained so that it corresponds to the medium of adjustment of the signal of the balance of the ground. This is easily done with a sample with a piece of ferrite. It really takes time. Then the resistors determining the discrimination are selected. It is possible to put a potentiometer to adjust the discrimination. The coils are with electrostatic screen, OO or DD type.

[pito]

[scs-bg]

Yes, there is a connection. It's hard to see.

[scs-bg]

[scs-bg]

It is good to connect 100 nanofarad capacitors to the receiver input after the 6.8 kilohm resistors. It works better. This is done in the improved version.

[scs-bg]

[scs-bg]

I'm an adult now. I see poorly. But my brain still works. Don't be angry with me that everything is poorly drawn.

[scs-bg]

I have a health problem. When I leave the hospital I will try to make a good scheme. This detector is not a pulse detector but it works great on the ground and on the beach. And for those who like pulse detectors I have something very good...

[ivconic]

Get well soon Sašo!

[scs-bg]

Thank you. I wish you health!

[Ruben2000]

I have a health problem. When I leave the hospital I will try to make a good scheme. This detector is not a pulse detector but it works great on the ground and on the beach. And for those who like pulse detectors I have something very good...

We hope you feel better soon, scs-bg. Thank you so much for sharing your schematic.
I'd like to build the schematic you just shared. I'll give it some time, and I hope someone finishes it and lets us know how it goes.