Real clone Alonso-PD

[Nicolas]

Hi Nikolas
This is correct.
Original PD has D4,D6 diodes 1N4148. I replace with two NPN transistor work "as diode" if unconnect base
With this tip we have more temperature stability , because NPN protection inside plastic case and we have the same result.
R22 use for stability pot
C4 use tantalium. If you have not connect serial + - - + two electrolytic capacitors 22uF
U4 use only 78L05, because Lseries has more power supply out stability
Cx remove.. is not important
Led2 use a hight bright yellow LED is better for this stage
If you have not R6,R6A=680K you can replace 1M

Other tip. If you have note D2,D3=1N60 you can replace with RED LED!!!!!!!
Yes my friend, a poor Red Led (no high bright) work as diode perfect if frequency is < 3MHZ
regards

Thank you dear Andreas for this details and tips

We will try to do it if I find the time.

I await your response to my email. Thou hast promised when you return from your trip

[ANDREAS]

Thank you Nicolas
I think today we finish with schematics and PCB
Here is transmitter without modification

[Nicolas]

Thank you Nicolas
I think today we finish with schematics and PCB
Here is transmitter without modification

Hi andreas thanks
But I cant understand these connection

J1 = ?
Trans = ?
JF = ?
P1 = Sens= ?

please explain good these connection because I think J1 is supply 18V is not for transmitter

[ANDREAS]

Hi andreas thanks
But I cant understand these connection

J1 = ?
Trans = ?
JF = ?
P1 = Sens= ?

please explain good these connection because I think J1 is supply 18V is not for transmitter

J1= 2X9V Alkaline
Trans= power supply connector for transmitter
JF = connector feritte - coil
PI= 47K multiturn pontesiometer

[Nicolas]

J1= 2X9V Alkaline
Trans= power supply connector for transmitter
JF = connector feritte - coil
PI= 47K multiturn pontesiometer

Hi Andreas
Then J1 in Pcb for transmitter is connect to Trans +9V and not in J1 for supply 18V dc it's for battery.

That is your error. I cant understand the two name for J1. sorry

Thanks

[ANDREAS]

Hi Andreas
Then J1 in Pcb for transmitter is connect to Trans +9V and not in J1 for supply 18V dc it's for battery.

That is your error. I cant understand the two name for J1. sorry

Thanks

Hi Nicolas
Is very clean
JI (on PCB) is for connection batteries (two serial 9V=18V)
Trans (on pcb) is for connection +/-9V transmitter
Later i publish all connection with a diagram
regards

[ayoni03]

Dear Andreas!
Thank you for sharing ..
Regards and all the best!

[iron1944]

Mr. ANDREAS.
Can you help me?
How to do MV Alonso TX coil?
What will be the diameter of the coil, the coil wire diameter and number of laps will happen?
Thank you.

[ANDREAS]

Hi all
Next step is omega-coils
attachment PDF
Note1: Original schematic publish Qiaozhi has for Tx coils 12+5+3+12. If you seePDF my omega has 12+3+5+12turns. This is correct.
We need high peaks RF transmitter with low-level modulation signal for better calibration
If we work with 12+5+3+12 turns TX coil you have 100% modulation signal 400-800HZ
with 12+3+5+12 modulation signal has level 45%
Note2:The dimensions are critical , if you want a properly nulling
regards

[LRLMAN]

ANDREAS NEED HELP POR END THE PD

Hi Andreas here the image of my omega coil and i have much images of my prototype but I need some help to finish this project I have done many tests with many types of omegas and ferrite coils but I can not achieve to detect a coin at 50 cms as morgan says so I would like might help a little, I think I'm just a bit close to it and I could make the PD detected a magnet at a distance but I need even more distance also able to detect the two components of the phenomena electric and magnetic components.

Here is a picture of the omega coil according to the ohmic resistance pointing by Morgan, I think I'm wrong on some things but I think the whole secret is in the type of turns of the ferrite and the omega maybe i think i am near of make work the Pd alonso.

[LRLMAN]

I HAVE TWO PROTOTYPES

HERE OTHER IMAGES

[Nicolas]

I think your problem dear wiliams are the location of your coils
Firstly you do not have the zero point between the coil they are almost in the same axis we must shift
second one must have a good calibration at the coil with ferrite. it must be adjustable and mobile

[LRLMAN]

Alonso PD

I do not understand what you mean with that william or axis of the coils.
and you observe a position at which the ferrites are with respect to each device omegas?

I think this is the correct position as established by alonso pd.

SALUDOS.

[Nicolas]

I do not understand what you mean with that william or axis of the coils.
and you observe a position at which the ferrites are with respect to each device omegas?

I think this is the correct position as established by alonso pd.

SALUDOS.

Hi, I mean with >>>>> Wiliams Tim Williams, but I did not write that wrong sorry

I do not think dear Tim becaufe the magnetic chapms are parallel
mean overlap. So to have a zero points must be moved one of them
is the omega coil low ferrite or down as I have represented on your photo

Look Pd Totem that is 100% correct
and this picture by andreas

and ferrite adjustable for calibration

[LRLMAN]

PD

Are you sure?

let me experiment this again though I've done before and when separated much the ferrite antenna from the omega nothing magic happens, but I'll try again with omega coil did in a different way.

But I would also like the opinion of Andreas or someone else

For the confusion.... don't worry

I send you greetings and a strong hug

LRLMAN.