Lrl from Italy

[FrancoItaly]

I think this is no good, the better it's the stylus antenna.

[RIMES]

Thanks Mr Franco

[brs]

hi franco
Is the transistor bf240 increases the sensitivity of the machine, and you have a real testing ground

[FrancoItaly]

I can not test the Bf240, I'm not in Italy, Geo has had this idea, and we expect the result.

[Geo]

I can not test the Bf240, I'm not in Italy, Geo has had this idea, and we expect the result.

Hi Franco.
No better results with highter frequency transistor.
There is better sensitivity but the compass phenomenon is highter so we need to reduce the sensitivity. Total gain = 0

Regards

[ouiarabe]

Hi all
it's bizard but if I connect the stylus antenna at the base of TR2 the mounting becomes more sensitive

[FrancoItaly]

Hi All,
It may be a good idea, but we must check whether does not appear the compass effect.

Best Regards

[ouiarabe]

Hi All,
It may be a good idea, but we must check whether does not appear the compass effect.

Best Regards

hi franco
I did some tests and there is no effect of the compass

[abdou2014]

it has been a long time I tried these methods . this device receives with the capacitor

[FrancoItaly]

Hi ouiarabe,
Have you noticed improvements with buried metals?

[ouiarabe]

Hi ouiarabe,
Have you noticed improvements with buried metals?

hi Franco
I have not a good test fields, I buried for nine months two small gold rings from a few grams.
I tested in a field where there has a Roman ruin, the device responds in two positions but I have not checked well because of the presence of many people and the prohibition for treasures research in my country .

Finally, please forgive me for my language

[brs]

the base of TR2
Not the best hand reveals the phenomenon

Increasing the lighting led when touching the antenna by hand

[brs]

hi franco
I want an alternative to Transstor bf240 to doing my experience for TR1

[FrancoItaly]

The transistor TR1 must have a very high gain and even a high operating frequency, then I think go well all the NPN transistors of the BC ...series (the "C" type has a gain greater than 500) and a frequency of more than 200MHz, BC239C and BC549C they are fine. The transistor BF... series they have a higher frequency of operation but a lower gain, thus they are not suitable.

Regards

[brs]

Thank you very much Franco