Lrl from Italy

[shahrayar]

Regarding the transistor 548 why it is not suitable for this device؟, the frequency of 200 MHz

[shahrayar]

Thank you for your cooperation Dear Franco, I forgot to thank you,
I was busy with the many devices that I made

[FrancoItaly]

Regarding the transistor 548 why it is not suitable for this device؟, the frequency of 200 MHz

I think any transistor BC...C is suitable.

[shahrayar]

Thanks dear Franco, you are a very nice person
What do you think of this amendment?

https://www.youtube.com/watch?v=680zTzg80Uk

[shahrayar]

Maybe this is better than crystal

[FrancoItaly]

Thanks dear Franco, you are a very nice person
What do you think of this amendment?
https://www.youtube.com/watch?v=680zTzg80Uk

think that's ok.

[FrancoItaly]

Maybe this is better than crystal

I chose the quartz version because it is much simpler and just as effective, in fact there are fewer components, you can easily change the frequency only by changing the quartz and oscillating more easily.

[shahrayar]

think that's ok.

[shahrayar]

Sir Franco, I have set up a transmitter antenna, and another for reception . Frequency 10 MHZ
What do you think this way?

https://www.youtube.com/watch?v=zmq4-ODVXuA

[FrancoItaly]

Sir Franco, I have set up a transmitter antenna, and another for reception . Frequency 10 MHZ
What do you think this way?
https://www.youtube.com/watch?v=zmq4-ODVXuA

My lrl operates in the range of 100Mhz, the frequency of the internal oscillator is in the range 2 -10Mhz (approximately) and does not intervene directly in the reception of the "phenomenon". However the only way to verify the goodness of your change is on the test field, with buried metals.

[shahrayar]

My lrl operates in the range of 100Mhz, the frequency of the internal oscillator is in the range 2 -10Mhz (approximately) and does not intervene directly in the reception of the "phenomenon". However the only way to verify the goodness of your change is on the test field, with buried metals.

I have used 10 MHz transmitter and 10 MHz receiver by adjusting the coil variable
the frequency of the internal oscillator is in the range 10Mhz
I understood from your saying I could use reception up to 100 MHz

[shahrayar]

Dear Franco
What do you think of this oscillator?

[IMG][/IMG]

[IMG][/IMG]

[FrancoItaly]

Dear Franco
What do you think of this oscillator?

[IMG][/IMG]

[IMG][/IMG]

I don't know what to say, at first sight it seems to me too complicated and not always what works in theory in a simulation in reality works just as well.

[shahrayar]

Yes it does not work in simulation

[shahrayar]

Finally, I found an effective circuit simulator