MINEORO 2008 MODS.

[Geo]

No, it is very very sensitive. There is also one yet op. ampl and the total gain is near to 10.000
I work this receiver many years with good results when there is phenomenon.

[iam_7up_gamer]

geo second circuit is electro static or ac electric detector ? this two has difference

please give more info about second circuit

[zakari]

PERHAPS GEO DECIDE TO COMBINE DC2008 AND DCH85...WITH MODIFICATIONS

[Geo]

geo second circuit is electro static or ac electric detector ? this two has difference

please give more info about second circuit

Which circuit do you mean??

[iam_7up_gamer]

you have 2 circuit .

no 1. passive receiver

no 2. static detector

please give more info about nomber 2 (static detector)

[Geo]

There is not passive receiver.
1st transistor works as oscillator so 1st diode demodulate the carrier signal from oscillator.
Lm386 has a gain of 200 and amplify the modulated signal.
This is the theory of Mineoro. I keep the original schematic of Mineoro FG... and i do some modifications to increase the gain.
What other you want to learn???

[iam_7up_gamer]

geo can you put here just oscillator schematic ?

[Geo]

Here there is the schematic of the receiver.
The 1st Transistor works as oscillator

http://www.longrangelocators.com/forums/showpost.php?p=143650&postcount=17

[iam_7up_gamer]

yes is a kind Colpitts oscillator

[iam_7up_gamer]

geo about you use static detector . there work as static detector or electric detector ?

how much is sensitivity ?

[zakari]

HI ALL
GEO THANKS ALOT FOR YOUR EXPLANATION BEFORE I WAS THINKING THE Q1 IS THE MIXING TRANSISTOR(CARRIER WAVE FROM CHAMBER ION OSCILLATOR AND MODULATE WAVE) AND CHAMBER ION AND ITS OSCILLATOR ACT LIKE THE TRANSMITTER AND PART OF THIS WAVE GOING TO THE RECEIVER LIKE THE PD AND PDK
I SAW YOU CHANGE THE VALUE OF CAPACITORS AND RESISTORS OF ORIGINAL RECEIVER OF
FG79 DO YOU CHANGE THE SCHEMATIC ?
DO YOU CHANGE FREQUENCY TUNING OF POT CORE OR NOT THAT IS ALMOST 35-40KHZ?


BEST REGARDS
ZAKARI

[Geo]

geo about you use static detector . there work as static detector or electric detector ?

how much is sensitivity ?

You don't explain me. Witch if works asstatic detector or.....

[Geo]

HI ALL
GEO THANKS ALOT FOR YOUR EXPLANATION BEFORE I WAS THINKING THE Q1 IS THE MIXING TRANSISTOR(CARRIER WAVE FROM CHAMBER ION OSCILLATOR AND MODULATE WAVE) AND CHAMBER ION AND ITS OSCILLATOR ACT LIKE THE TRANSMITTER AND PART OF THIS WAVE GOING TO THE RECEIVER LIKE THE PD AND PDK
I SAW YOU CHANGE THE VALUE OF CAPACITORS AND RESISTORS OF ORIGINAL RECEIVER OF
FG79 DO YOU CHANGE THE SCHEMATIC ?
DO YOU CHANGE FREQUENCY TUNING OF POT CORE OR NOT THAT IS ALMOST 35-40KHZ?


BEST REGARDS
ZAKARI

Hi.
Please don't write with capital letters, is very tiring.
This schematic has nothing to do with FG79. It is for FG80, FG90 and DC2008.
Frequency depends of the model. Fg90 is near to 34Khz, FG80 80...85 and DC2008 near to 100....105Khz. This time i don't remember exactly

[Mike(Mont)]

Probably bad timing but my two bitcoins here (not worth much LOL) I like the idea of a higher power transmitter and a lower power receiver. Assuming the transmitter actually does something, that is the active part of the system. Furthermore, some soil (higher conductivity) needs more power to transmit through--to burn off trapped voltages (spontaneous potential).

[Geo]

I believe it could be done at a different system.
Here transmitter and receiver have the first stage common, so the more high power at oscillator the lower sensitivity at receiver. All the story is to find the balance point for better results(at normal terrain).