Reverse Engineering a pulse induction metal detector...... Help required

[haseeb zaib]

Hey guys

I am reverse engineering this PI metal detector but I am stuck in this part of the circuit. I am calling it 4 stage amplifier but mainly this is the portion where all the sampling is being done. Before getting to a part where I am stuck, let me explain a circuit a bit, upper side...

[inductor]

hello,


i am looking for any information \ documentation on some older whites metal detectors.
i have a few units that i am trying to recondition and have found it hard to find technical information.


for example: digrams, the tuning pots on the circuit boards,...

[Frederick]

My Goldfinders website failed because i have little to offer hundreds of potential customer who visit the site every day.
Does anyone have a product i can offer, as this is a good opportunity to make money for someone who is creative.
Can anyone explain how Minelab managed to run...