IDX-PRO+VDI

[orrtizz1]

Good morning.
I have put together the most recent IDX-PRO circuit on a breadboard to check its operation, based on the schematic shown below. However, although there are amplitude changes in the Rx signal, there is no reaction in the speaker when passing a metal. In addition, the transistors connected to the speaker get too hot. If someone could advise me on how to check some parts of the circuit to find the error, I would greatly appreciate it.

[ArchibaldSTM]

Here is the correct diagram. Pay attention to the value of the capacitance C37. If the output transistors are heated, look at the pinout (with a tester). It is better to remake the SENS knot as shown in the picture.

[deepseeker3214]

Hi i hope everyone is doing well, please point point me to the working files of both the vdi and the 2 tones board, i have made the idx version without the trimpot. and thank you all in advance.

[Vikas Kumar]

Brother can someone help me? I am in a lot of trouble. I am from India. I have also made idx pro but its metal detection distance is very less, about 10 cm only. I don't know what the problem is and can you tell me the wire connection of all the potentiometer circuits. Please help me. I am very grateful to you.

[Aleks85]

VDI
VDI.rar

[Aleks85]

Coil white’s IDX
IDX_Concentric_coil.pdf

[deepseeker3214]

This is connection for 2 tone. [ATTACH]39490[/ATTACH]

Me again sorry i really didn't fully get it, please can anyone provide me with both the vdi and the 2 tones boards working schematics for the pcb making preferably not in russian, or refer me to exact pages in this topic as i found it pretty time consuming and confusing to scroll through more than 280 pages to get the latest working and updated thing, it's great because it shows how people are updating the circuit and collaborating and helping noobs like myself but i got lost in the middle of all the different layouts and edits etc... it's my first time making idx and vlf machines in general so please excuse my ignorance. I have the board without the trimpot i hope it's compatible with both the 2 tones for metal discrimination and the vdi. Also i got my hands on a coil from a friend that's a nokta makro not sure which model as it haven't arrived yet and i was wondering and really hoping it's compatible with idx pro so i don't go through the coil making pain later? Thank you all the geotech community and admins you have been a great help for me in many occasions.