Rare AQUASound metal detector......

[Melbeta]

A man named Herb, invented the AquaSound detector, which was an straight TR detector, with NO DISCRIMINATION in it at all. It is said it was a take off of the Nautilus IIB detector, with a different coil design. The AquaSound was reverse engineered by Russians, and I got their reverse engineering schematic, which is purportedly has some errors in it, But I enhanced it, and stick it below, for your viewing and thinking.I will also stick in a photo of the 2007 Aquasound sealed container, which housed the Printed Circuit board. Both are below...
MELBETA

Now keep in mind, though reverse engineered, it purportedly has some errors. I do not know what the errors are though...

[Melbeta]

Now I will stick in a good Technological discussion, of which I was a part of back then, and which analized various AquaSound designs, and finally got one of the designs to work, but I never got a copy of that material, other then what I post here today, as purportedly the correct NEW Schematic from a person name Altair. Here it is below, as large and enhanced a bit, I think it might, that is might, have been the final selected design. Why? It has been a long time since they picked the actual schematic, and the posts do not identify which schematic was the final one other then Altair drew it out... But first the discussion, then the Schematic of Altair......the enhanced front of the AquaSound PCB, and the enhanced trace side of the PCB, and I darked the traces a bit, so they can be seen...
MELBETA
As you can see, I enhanced it, and made it very large, so any computer store can print it out. Next, is the technological discussion, it is second, not first, as I was more concerned with the schematic...The front of the PCB, and the rear of the PCB, both well enhanced for clarity, and make sure you read the AquaSound Information. Doc file, it is from the past, and if you notice any error, let me know........MELBETA

And now, an enhanced photo of the AquaSound detector cased PCB...
AquaSound Information.doc

[Melbeta]

I am going to stick in the Pre-Amp schematic, to make sure it is in here as well...
MELBETA

[pito]

Rare but with two very good things
1. very simple coil balancing
2. Rx coil with tab = reduced ground mineralization effect, currently working on it .......

[Mario-j23]

All diagrams are available on the forum. The problem is the design of the probe and how it is balanced. Measurements at the output of the RX amplifier would help a lot.
Nautilus patent US4099116A
"During the time the cement is hardening, the coils are adjusted for a zero degree phase shift of an impressed test signal from the transmit coil as received in the receive coil"

[kt315]

The AquaSound was reverse engineered by Russians,

i keep some notes... sometimes...

This detector was manufactured 2 years ago for me. They are custom built by a couple of very talented people in Florida and modeled after a Nautilus detector. The technology has now been around for quite a while, but depth and sensitivity in the right sand cannot be matched This detector is virtually brand new and comes with both water coil and land coils and each has its own shaft to make the transition from land to water much easier. Paid $2900 new.

The Aquasound detector is a very high powered TR unit (52V to the coil in high powered mode and 32V in low power). It has a custom built waterproof case that is a very strong, thick walled, clear polycarbonate (Lexan). The Aquasound must be used away from any black sands. The cleaner/whiter the sand, the deeper it goes. Tuning the machine is also critical (this is usually maximised after about 10 minutes of use). The coil loves to be submerged in water where the electronics can be really wound up.

"Good" tuning will give you a depth of 18" but with "Great" tuning you will see 20" plus. The tuning then incorporates getting both "Null" controls centered really tight and then the 10 turn volume/threshold down really low.

[Melbeta]

Rare but with two very good things
1. very simple coil balancing
2. Rx coil with tab = reduced ground mineralization effect, currently working on it .......

Pito, if you can, stick in a PCB pattern, that is all that is lacking in my posting. I kind of think it was a "take off" from the earlier PRG metal detector, which came from the South East part of the United States.
MELBETA

[Melbeta]

The AquaSound was reverse engineered by Russians,

i keep some notes... sometimes...

This detector was manufactured 2 years ago for me. They are custom built by a couple of very talented people in Florida and modeled after a Nautilus detector. The technology has now been around for quite a while, but depth and sensitivity in the right sand cannot be matched This detector is virtually brand new and comes with both water coil and land coils and each has its own shaft to make the transition from land to water much easier. Paid $2900 new.

The Aquasound detector is a very high powered TR unit (52V to the coil in high powered mode and 32V in low power). It has a custom built waterproof case that is a very strong, thick walled, clear polycarbonate (Lexan). The Aquasound must be used away from any black sands. The cleaner/whiter the sand, the deeper it goes. Tuning the machine is also critical (this is usually maximised after about 10 minutes of use). The coil loves to be submerged in water where the electronics can be really wound up.

"Good" tuning will give you a depth of 18" but with "Great" tuning you will see 20" plus. The tuning then incorporates getting both "Null" controls centered really tight and then the 10 turn volume/threshold down really low.

Hey, glad to see your post KT315. Do you have any PCB patterns??? I would like to see them stuck into my post eventually. Yes, it is a "WHITE SAND" detector, and I do have George Paynes factory schematics for the Whites CoinMaster V Supeme unit, and I have a "one of a kind" 1976 UPDATED unit, with the later TR discriminator from Whites Electronics. How did you like the Enhanced Versions of the documents? I have enhancement software that came from Microsoft that i learned to use professionally... I would like to enhance PCB patterns, then stick in a scan of PCB decals for the parts placements. One could then, print out the part decals, and make up boards really easy!
MELBETA

[Melbeta]

Okay, I took the smaller 96 resolution pixel size, raised it to 300 pixels, enlarged it to 7 by 10 inch size, and it looks very good. So I am sticking it into this forum, as a large sheet size, with higher pixed resolution so I can be used to make PCB's for experimentation.KT316, you can make some PCB's for sale, and send me one, as i would like to kick out one of these AquaSound units, for my experimentation here locally. The enlargement I made a few minutes ago, can be printed very neatly on 24 inch sheetso f schematic paper. I do not see the upload button showing up, or I would have uploaded it here and now. When I see it again, I will upload it. I will try cut and paste and see how it shows up here if it will show up here below... It looks kind of good, a bit spotty though, but good enough to see pretty good. Going to see if I can save it now as well for the forum...Well that did not work, it was all lines of code, and no photo of the 7 x 11 photo of the enlarged schematic. I will wait until I see the UPLOAD buttons again, for some reason they do not show up today!
MELBETA

[Melbeta]

All diagrams are available on the forum. The problem is the design of the probe and how it is balanced. Measurements at the output of the RX amplifier would help a lot.
Nautilus patent US4099116A
"During the time the cement is hardening, the coils are adjusted for a zero degree phase shift of an impressed test signal from the transmit coil as received in the receive coil"

Sorry mario, I do not have the actual detector, nor do I have the measurements of the outpit. KT315, has the actual unit, perhaps he can measure the output and post it here??? I was not aware that all of the diagrams were available on this forum. But at least, I did post enhanced images, which I doubt are available on this forum as I created them myself.
MELBETA

[pito]

Pito, if you can, stick in a PCB pattern =The detector which I am working on has only Rx coil similar, rest is using modern components.

[Melbeta]

Okay, I took DOM's PCB pattern, with the connection information on it, enlarged it to fit my computer screen, then enhanced it for more clarity, and am going to stick it into here, as it contains more information for everyone. Butagain, the forum today, on MY COMPUTER, the upload buttons are missing, so will wait for another day, and will then stick that PCB photo, into this area. Otherwise I think all that will show up is lines of code for the photo.. I will shut my computer down, start it up again, if the upload button is there, will upload it then. If not, will wait for another day. I live in a tall forest of trees, so only have an old telephone line for internet access. That is the price for where I live I guess...

Ohhh! Thanks PITO, man I was expecting a board pattern like the old 2007 unit PCB, but you are microprocessor based. But thanks, I think CARL and others will like it though. Me? I am still back in the early resistors, caps, etc discrete based PCB's... Send my your email to [email protected], and later I will send you my PCB pattern too...I drive the older cars you see...... But you are SPACE AGE Pito!!! Me? I am back in time Pito... But Carl and others will love it. Motorola micro???
MELBETA

[Melbeta]

Pito, if you can, stick in a PCB pattern =The detector which I am working on has only Rx coil similar, rest is using modern components.

Thanks, not quite the PCB pattern I expected for my more primitive PCB mind, but fantastic to see your own PCB pattern. GREAT!!! You have a microprocessor driven unit you see, and I am an old guy who uses discrete parts. Man the world has changed a lot while I was getting older! I drive an old 1989 Buick Riveria as I do not like the modern cars and pickups. You are space age based PITO!!! I bet CARLMORELAND would like the Sram, proms, and microprocessor code though. What do you say Carl???????
MELBETA

[pito]

can you make picture like this ?



I am an old guy who uses discrete parts = I used to use them too, but I hate hand drilling, so I made my own SMD PCBs long before manufacturers did.


. =

[Melbeta]

Pito, if you can, stick in a PCB pattern =The detector which I am working on has only Rx coil similar, rest is using modern components.

Pito, you are a microprocessor code writer, and I got some technical materaial for more modern detectors, what do you say to the thought, you and I email each other, I think we can help each other out.
I am at [email protected] and lets talk with emails. I think you fly flying saucers in the sky, and I am driving older cars down the road. I got some George Payne stuff and some Whites electronics stuff. I used to build racing cars and I am still into the old stuff, but I can see you are into the newer stuff from that small concise microprocessor driven PCB. I used to hack and crack old Prom and EEprom chips, but not the microprocessor chips though, I am into code, but not into digital code you see.
MELBETA