Metal Detector Coil booster

[papaTJeeper]

Metal Detector Coil Booster

Of course there was a "coil booster" made some 20 or so years ago. I have one that the paper work says is for a White's series 2 or 3. It is about the size of 2 packs of cigaretts and has a clip to attach to pole
with a connector for coil cable and a pigtail to plug into the detector
electronics box. Uses a 9v battery for power and claims the battery
lasts for 75 hours. This "booster" was purchased Feburary 1990 and is
new. I don't remember if I ever tried it or not. The "instructions do not say if it boosts TX or RX or both. It and models for other detectors were made by Dayton Electronics. (Carl, surely you were detecting in 1990.)

I also have 2 models of the "Depth Master" audio booster/limiter which
are for the audio only. They work as the mfg claims.

I will supply a picture of the Coil Booster to someone who will post it in this thread.

Maybe this will answer some questions.

Ty

[devros]

If you have the schematics please do post them. If you want to email me what you have I will post it on here for you, please email to [email protected]

thanks for your input.

[papaTJeeper]

Coil Booster

I'll take a photo tomorrow or Thursday and get it to you. I do not have a schematic for the device.
Ty

[Qiaozhi]

Of course there was a "coil booster" made some 20 or so years ago. I have one that the paper work says is for a White's series 2 or 3. It is about the size of 2 packs of cigaretts and has a clip to attach to pole
with a connector for coil cable and a pigtail to plug into the detector
electronics box. Uses a 9v battery for power and claims the battery
lasts for 75 hours. This "booster" was purchased Feburary 1990 and is
new. I don't remember if I ever tried it or not. The "instructions do not say if it boosts TX or RX or both. It and models for other detectors were made by Dayton Electronics. (Carl, surely you were detecting in 1990.)

I also have 2 models of the "Depth Master" audio booster/limiter which
are for the audio only. They work as the mfg claims.

I will supply a picture of the Coil Booster to someone who will post it in this thread.

Maybe this will answer some questions.

Ty

You can easily attach the pictures yourself. When you reply to a post, or create a new one, simply scroll down the page until you see the "Manage Attachments" button.

[plumabob]

I have used the sovereign amp shown above. The increase in depth really is as stated. And it's stable. Also there is an increase in sensitivity making it easier to pick up gold chains and other small gold targets.

Bob

[beachcomber]

Hi Qiaozhi,

Thanks for advice,pictures below.
beachcomber.

[devros]

Nice thank you, now only if I could find a schematic for it. I wonder if they are still being made? I think that a schematic could be found if I searched hard enough now that I know what it's called. Thanks for everyone's help.

[Geo]

Nice thank you, now only if I could find a schematic for it. I wonder if they are still being made? I think that a schematic could be found if I searched hard enough now that I know what it's called. Thanks for everyone's help.

If you will find it, please send it to me via email or post it here

Regards

[Qiaozhi]

Nice thank you, now only if I could find a schematic for it. I wonder if they are still being made? I think that a schematic could be found if I searched hard enough now that I know what it's called. Thanks for everyone's help.

You could try emailing [email protected]
At least you'll know if they still exist as a company.

[devros]

I will try emailing them to see if they still make them. One post here showed them selling it so I would think that they are still being made. Hard to sell an item that is outdated.

[turtlebowl]

Any progress on Booster??

Hi Folks... Was just reading through this thread and noticed there was no additional postings in the last year after discussions on wether there is a schematic circuit drawing available. Has anyone come up with one?? Besides the product mentioned George Payne had one available for his old Mark I Teknetics line. They were made by Dayton Electronics I believe as someone else mentioned here. Was this the same type circuit design as Minelabs???? Lets open this topic up again guys. Does anyone know George and can ask him for the circuit drawing?
As a side note I manufactured a product at the same time as the depthmaster that had variable boost and optional LED BAR visual meter. It was strickly and audio amp with high signal limiting. A audio compressor of sorts. Plugged into the detector earphone plug and ran off an external 1.5 volt battery. I will try to locate the drawings for those products for post here.

[devros]

I would love to have a copy of the drawings if you can find them. I have found several designs over the last year of audio amps. They are of course portable headphone amps, I have used them with my detector and have found out that they work quite nicely. I will post some of the schematics when I get a chance. Talk to you all later.

[turtlebowl]

It may take me a week or so to get to the drawings.
BUT just to be clear....we all know about the simple audio amp booster/limiter made by Depthmaster and myself in the the 80's. They were a very simple 6 component circuit. My request was to pick up the thread on the inline boosters located between the coil and box. I am assuming they were something quite different?? If so was wanting to see a circuit drawing or two. I left detecting at that time to start gold mining and missed out on that whole power booster thing. Anyone???

[georgi.g.zhelev]

coil boster

Hi, I think putting the amp, this is not a simple task, why amplifier? . These are additional interference. Will shift the phase of the input signal settings GEB and DISC will escape will be impossible to regulate!

[turtlebowl]

Yes I would guess that were one to add components into a balanced circuit there would be circuit operational changes. BUT the task here is to recognise that some very major manufactures - Minelab, Tektronics, and I believe Garrett- all had just such an optional external power amp available for those old workhorses. We all know they were smart people Plus owners/operators have reported that they did work. So the question becomes why and HOW did they design the "add-on" circuit to overcome the negitive effects and rebalance the circuit when the circuit was added on. ??? This is not intended as a technical design forum/debate. We are simply asking if there is a few schematics out there that folks can share with us; even internal photos would help the thread. Also helpful and interesting would be first hand experience stated in a down to earth manor with no techno jargon. Anyone??