Bounty hunter fast tracker metal detector help ID a capacitor!!

[Adam24]

Hello everyone,i have this bounty hunter fast tracker metal detector pcb and there is a missing capacitor positioned at C18 far left near the left knob for the sensitivity..its narked as C18.
I could find a loose capacitor in a bag where i kept this pcb this capacitor i found is marked 25 v/100 uf
Also there is another capacitor on the same board with the same value 25/100 . I would like to get help decide weather the missing capacitor is rated 25/100 or something else.
Note that i attached a picture for the same board with minor additions for another metal detector,the bounty hunter tracker IV complete i got from Google which i believe bounty hunter used the same pcb on 5 deferent meatal detectors they market.

 

[Carl-NC]

100uF is correct, and 25V is more than enough. Personally, I'd put that board in the Hopeless bin.

 

[too_pointer]

Wish, I could help, I started " as many with Bounty Hunter. Good luck. I think it was a Land Star, but had problems right away, with it sounding off on ferns. and whatever it hit.
too_

 

[Adam24]

100uF is correct, and 25V is more than enough. Personally, I'd put that board in the Hopeless bin.

Thank you Carl for assuring me .
Could you also know the the potentiometer right and left which one clicks and the Ohm value for
each because i obtained this board from somebody who previously altered some components trying to fix it after he got it wet .also why you think it's hopeless that board is used with 5 other BH models so it should be a great one

 

[Carl-NC]

Both pots are the same, 10k with an on/off switch.

 

[Adam24]

Both pots are the same, 10k with an on/off switch.

They don't make any click sound so is this a fault within or the click sound comes from a missing external part

 

[Adam24]

100uF is correct, and 25V is more than enough. Personally, I'd put that board in the Hopeless bin.

I am in the process of making a replica of this board through reverse Engineering.its simple board i think ,i will update you with the results,do you think it's a good Board at all ?

 

[Valley Hunter]

I would just buy another TR4 will have extra coil and rods

 

[Carl-NC]

They don't make any click sound so is this a fault within or the click sound comes from a missing external part

The pots I see in you photo appear to be missing the on/off switch. In other words, they are probably not the original pots.

 

[Carl-NC]

I am in the process of making a replica of this board through reverse Engineering.its simple board i think ,i will update you with the results,do you think it's a good Board at all ?

As I said, I would file it in the Hopeless bin. With a lot of effort it might be fixable, but for $50 or less you can find a used one on eBay that works. If you are doing this for funsies or to learn how detectors work, try the Geotech forums. If you reverse-engineer a schematic, post it and I will check it over for errors.

 

[Adam24]

I appreciate your willingness to help truly ,the thing is after i used to own many detectors in the past i only have that board along with couple more yet not a fully functional metal detector,
I live in Egypt (North Africa)
I need a DIY pcb for a metal detector for Gold ,just Gold because i go to the beach and there is many good finds there ,i can't afford a trademark at all at least for awhile so what do you suggest?i already saw few on eBay but they are PI clones without discrimination.
I will definitely seek your help when i DIY anything ,i learned alot about electronics recently just for the porpuse of making a metal detector.