IDX-PRO+VDI

[ashefr10]

for what kind of money this detector? Roman? , Gallic? gold? money? bronze? copper?

[golfnut]

WHAT IS THE OPERATING FREQUENCY OF L IDX PRO ?

It is approx 6.5kHz


There is flexibility to move it around, my Tx runs at 12kHz, Rx is about 8kHz

S

[ashefr10]

WHAT IS THE OPERATING FREQUENCY OF L IDX PRO ?

[onuba]

another problem It melts BC517

solved was a short another problem It melts BC517

[onuba]

was out of place ,regulator is still hot,Classic 2 Speaker

[Schatztaucher]

the mpsa13 has the right direction. what speaker are you use? i had the same problem with a wrong speaker......i think i read in one schematic something like 50ohm-speaker.....you came use a piezo-speaker, like in silverdog's kit....

[ashefr10]

I do understand that the MPSA13 is upside down on the original PCB?

Error Error revised thanks joop
[ATTACH]23695[/ATTACH]

[joop]

[onuba]

MPSA13 misfitted

Error Error revised thanks joop

[onuba]

LM7808.se se calienta y se quema

It is best to test your PCB first with all the IC's removed.

remove ic and test voltage joop

[joop]

It is best to test your PCB first with all the IC's removed.

[onuba]

12v battery charger directly to the detector


LM7808.se gets hot and burned by 12v battery charger direct

[ashefr10]

OK, so I have to VR3 make adjustments as the post 178 and adjust VR3 until remove the aluminum foil.

[joop]

The VR3 potar then I do not know what it is, what value should I set?

See post #178

there is a resistor in series with the sensitivity potar rated 100 ohm to 1 kohm what value should I put it?

I have used 2k2. If you think gain is to low and your potar is at the end of scale then make it smaller. You will have to experiment

[ashefr10]

Request for clarification

I would like to know what is the potar box on the photo and what do I put as resistance in series with the potar sensitivity. thank you