Wanted "ADMIRAL"

[CEBRAIL]

Hi Cebrail,
What do you mean by adjusting the resonance?
The transmitter is autogenerator - switching the power it started generate sine wave, and if the value of the capacitor changes, it only affects the frequency.
The receiver is an amplifier implemented according to a common base circuit and is a non-resonant circuit. Is it a matter of selecting the capacitor, that is in parallel of the 15k in the emitter of the transistor?
Greetings.

tx 23 vpp bc337 connected 33 k bc 327 connected resistor ohm ground opamp LM 393 2 pin 1pin 7 pin and rx serial parallel capacitor tl072 connected resistors

[plcamjad]

What is the value of resistance, with all due respect and appreciation?

[bonchev2]

I use 68 ohm but can be use trimpot for fine tuning of oscillator current

[plcamjad]

Thank you. I will assemble the painting within the next week. Thank you from the State of Jordan

[Sarkim]

I use 68 ohm but can be use trimpot for fine tuning of oscillator current

What is the actual size of board?

[Toros]

What is the actual size of board?

~ 84x87 cm.

[bonchev2]

Mine is 83x83 mm. but now I made smd version with is 99x78 mm with potentiometers on it for more stable work but is not tested yet. I will posted when is done.

[Sarkim]

~ 84x87 cm.

Thanks brother
I see your reply to me, apologies I was busy didn't check notification

[bonchev2]

[getsa]

Well done!
It will be interesting to share your impressions after testing that version outdoors, on a real terrain, compared to the DIP version.
Cheers!

[bonchev2]

[bonchev2]

SMD is more stable. I like it. I have Ideas to change a search coils data a bit. Greetings!!!

[getsa]

Congratulations on another success!

Suounds curious, regarding the coil optimization...?

Interest remains high - keep going!

Greetings!

[CEBRAIL]

Admiral Quasarhttps://youtu.be/qd9Am9hMmeQ?si=jScmYNJGBA4t6PE4

[CEBRAIL]

Admiral Quasarhttps://youtu.be/qd9Am9hMmeQ?si=jScmYNJGBA4t6PE4