Bounty Hunter VLF TR 840

[nelson]

Hi all.
Does anyone knows if old Bounty Hunter VLF TR 840, can be use for gold or meteorite hunting?
This detector is a no movment and by this days with the knolegment i have achived here , while i was constructing other detectors, i knew how to ground balance my detdctors . So with this ij mind, i took my ols BH vlf tr 840 and i tried to GB pumping the coil up and down. The detector gots GB and now i can get better targets with it.
Indeed if anyone knows any mods for this detector, like how to get a DD coil, please share it.
On the picture, are some of my detectors (BH VLF TR 840, Fisher Gold Bug2 and Garret ACE 250). Also i have two Clone PI and one Tesoro Golden Sabre, not on the picture.
Regards
Nelson

[aft_72005]

Hi my friend, Nelson
Are you have circuit for bounty VLR TR840?
Best regards.

[rrwarren]

bh vlf/tr 840

hello, i also have 840. do u have manual contact at [email protected]

[nelson]

Hi my friend.
Yes i do have the schematic, but i have to find it, so when i get it i ll share it.
Regards
Nelson

Hi my friend, Nelson
Are you have circuit for bounty VLR TR840?
Best regards.

[aft_72005]

Hi my friend, Nelson
I waiting ....

[nelson]

Still looking for it, but you can search the forum, cause i got it from here. Don´t know where, but is here.
Regards
Nelson

Hi my friend, Nelson
I waiting ....

[Mrand]

Bounty Hunter TR 840 schematic (draw - W.Lahr)
Mrand

[aft_72005]

Hi Mrand
Thank you. Another good reverse engineering from W.Lher,
I also am searching Mr. W.Lher email address.
Very best regards.

[aft_72005]

Hi Nelson
Are you know that how much operating frequency?
Regards .

[nelson]

Mrand, thanks for schematics, cause i know i have it, but in some CD. The problem is that i have a collection of almos 500 CD´s, so you can have a picture of how hard is for me to find it. So many thanks.

Aft72005, no i don´t know the frequency and very important point to build a bigger coil. I heard that this old detector with few mods can by used for nuggets hunting. Not so shure of this, but i ll try this weekend to measure the frequency.
Bets regards
Nelson

Hi Nelson
Are you know that how much operating frequency?
Regards .

[aft_72005]

Hi Nelson
How much distance in air for detect the coin with 20-25 mm diameter from
Search coil?
What is search coil size?
Best regards.

[nelson]

Hi again.
Not too mcuh if you compare it with new MD´s. Abot 15 to 20 cms.
regards
Nelson

Hi Nelson
How much distance in air for detect the coin with 20-25 mm diameter from
Search coil?
What is search coil size?
Best regards.

[rrwarren]

nelson got manual for b.h. 840 if u still need it i will send it to u pdf format later

[aft_72005]

Hi rrwarren
Please send me B.H. 840 manual.
My email: [email protected]

Thank you.

[aft_72005]

Hi friend Nelson
Please determine values of disc and gnd bal pot.
Best regards.