Find's Treasure Forums
Welcome to Find's Treasure Forums, Guests!
You are viewing this forums as a guest which limits you to read only status.
Only registered members may post stories, questions, classifieds, reply to other posts, contact other members using built in messaging and use many other features found on these forums.
Why not register and join us today? It's free! (We don't share your email addresses with anyone.) We keep email addresses of our users to protect them and others from bad people posting things they shouldn't.
Click here to register!
Need Support Help?
Cannot log in?, click here to have new password emailed to you
Changed email? Forgot to update your account with new email address? Need assistance with something else?, click here to go to Find's Support Form and fill out the form.
Vintage White's Mini Master TR
- Thread starter Sven
- Start date
Old California
New member
Very nice Sven,
This particular model goes well in the older sites laced with iron, test her out with square nails covering a coin.
I have one just like yours only the box is gold/brown color, was very impressed plus gets above normal depth for a TR.
Congrats on the score,
Paul ( CA)
This particular model goes well in the older sites laced with iron, test her out with square nails covering a coin.
I have one just like yours only the box is gold/brown color, was very impressed plus gets above normal depth for a TR.
Congrats on the score,
Paul ( CA)
Wow, what memories. You'll notice that had no discriminator whatsover. "1976" was about the cross-over years, where ...... discriminators began to be standard on ANY machine you would buy. Not that everyone USED them in every conceivable hunting situation (there might certainly have been places where someone elects to dig all, including iron). But by 1976, you at least had that option on every detector (and could simply turn it off, or flip the switch, if you didn't want discriminate). I got into detecting about that year, and recall that you could still get Compass 77b's brand new about that time. Or ... as yours shows, Whites that also had no discrimination on them. But all the detector Co's, about that time, were rolling out their lineups that had various forms and types of disc. And before long, I bet that a detector WITHOUT IT, simply wouldn't sell
Hence yours is sort of the last of that generation. Thanx for posting!
Hence yours is sort of the last of that generation. Thanx for posting!
yes. The 66TR did it, the compass 77b did it, and other such machines. The "viking" (still made today, right?) still does it. So it's not accurate, I suppose, to say they had "no discrimination". Since they would pass small iron. And yes, see right through nails, to find conductors underneath nails. However, that trick only worked up to about 3 or 4 nails. Anymore nails than that, and it would start to null.
And their depth was poor, they were hard to keep balanced, worked poorly in minerals, and had no other form of Disc. So in nearly every way, they are a dinasour. But in that one way, they were great. Thus there is sometimes still a niche for them.
a 2-filter machine (like the whites classic series, various tesoro's, etc..) can see up to a nail or two over a coin. But the old all-metal TRs could do the trick with up to 3 or so.
And their depth was poor, they were hard to keep balanced, worked poorly in minerals, and had no other form of Disc. So in nearly every way, they are a dinasour. But in that one way, they were great. Thus there is sometimes still a niche for them.
a 2-filter machine (like the whites classic series, various tesoro's, etc..) can see up to a nail or two over a coin. But the old all-metal TRs could do the trick with up to 3 or so.
HaroldILL.
Active member
That what is nice about the Whites XL-PRO as it has a TR MODE to go along with the GEB DISC. and the awesome SAT MODE.
Sven
Well-known member
Wow, this detector is pretty neat.
Had very weak volume when I first turned it on. Did function overall. Determined it was not a bad speaker but, a bad op amp on the circuit board. The part was now obsolete, no longer made. Found a surplus item that matches up as a replacement. ... While the detector was apart, replaced the electrolytic capacitors as well. Finally added a new battery holder.
Powered the Minimaster up.......like I said Wow.
Operates with an extremely stable threshold. Played around air testing with my box of goodies. Love the way the large and small iron nails null out after 1" from the coil. Still picks up coins and gold rings when passing them touching the nail across the coil, even at 5-6". Like the nail(s) were not even there. Has no problem picking up a 1/4" gold nugget. Even my tiny vial of flake gold could just be heard at abou 1".
This detector will be fun to play with when spring starts.
Had very weak volume when I first turned it on. Did function overall. Determined it was not a bad speaker but, a bad op amp on the circuit board. The part was now obsolete, no longer made. Found a surplus item that matches up as a replacement. ... While the detector was apart, replaced the electrolytic capacitors as well. Finally added a new battery holder.
Powered the Minimaster up.......like I said Wow.
Operates with an extremely stable threshold. Played around air testing with my box of goodies. Love the way the large and small iron nails null out after 1" from the coil. Still picks up coins and gold rings when passing them touching the nail across the coil, even at 5-6". Like the nail(s) were not even there. Has no problem picking up a 1/4" gold nugget. Even my tiny vial of flake gold could just be heard at abou 1".
This detector will be fun to play with when spring starts.
Old California
New member
Good job Sven, You always were good with electronics good to hear you got her going.
The Whites Mini-Master is one hot TR, I've compared it with other TR's from the same era and it is one hot unit with both sensitivity and depth. I may have posted once before touching on the Mini Master on another forum so I've seen the same exciting results you're getting.
Picked up an old Ghost Tower TR from Allan Cannon a while back, It was a parts machine but really like the balanced feel of this unit so I gutted out my Whites Mini Master TR and placed the board inside the old Ghost Towner TR housing. Stayed with the coil too the 4B coil to the Mini Master was tuned for the Mini Master so it went on the old Ghost Towner housing as well. The meter assembly is tucked inside the housing really didn't want to carve a hole in the old TR housing so inside the housing it went.
Please share your experiences with the Mini Master TR when weather permits, You're going to really enjoy how smooth it operates and the depth it get's for an old machine.
I'll post a couple of pis of my modified Mini Master, Think I'm going to use her for a few days before work next week
Thanks Sven for the update!
Paul (Ca)
The Whites Mini-Master is one hot TR, I've compared it with other TR's from the same era and it is one hot unit with both sensitivity and depth. I may have posted once before touching on the Mini Master on another forum so I've seen the same exciting results you're getting.
Picked up an old Ghost Tower TR from Allan Cannon a while back, It was a parts machine but really like the balanced feel of this unit so I gutted out my Whites Mini Master TR and placed the board inside the old Ghost Towner TR housing. Stayed with the coil too the 4B coil to the Mini Master was tuned for the Mini Master so it went on the old Ghost Towner housing as well. The meter assembly is tucked inside the housing really didn't want to carve a hole in the old TR housing so inside the housing it went.
Please share your experiences with the Mini Master TR when weather permits, You're going to really enjoy how smooth it operates and the depth it get's for an old machine.
I'll post a couple of pis of my modified Mini Master, Think I'm going to use her for a few days before work next week
Thanks Sven for the update!
Paul (Ca)