Where o Where is the Pulse Devil?

[mxtswinger]

Does anyone have the latest scoop on the Pulse Devil? When will it be available, how to order, its final configuration, cost. Thanks and HH

 

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[bakergeol]

Does anyone have the latest scoop on the Pulse Devil? When will it be available, how to order, its final configuration, cost. Thanks and HH

Hi MXTSWINGER
I haven't corresponded with Dave in awhile so I don't know what his schedule is.There is nothing new on his website. This is the last message about the PD 1000 that I have. It is from Goldlover on the Finders Forum. It was dated Aug. 12. Perhaps the PD 1000 will not be released this year?

By the way the last time he used the PD1000 was on Ganes Creek and it gave those MXT users fits with interference. However, he said it would be an easy fix.

George

I decided no to rush to bring out the Pulse Devil but instead to do my
best to get it right on the money the first time.

Bringing out a new detector is not easy. The engineering takes a lot
of time and is very expensive. Just this month I spent over US$500 on
parts alone.

I have no investors or partners so I have to foot the whole thing!!!
(Luckily, due to this, I also don't have to take any crap from anyone)!!!

The Pulse Devil shown in the pictures is a test bed machine. The final
version will likely have a few changes regarding the controls and it
will likely be somewhat smaller in size.

The controls are similar to those found on a VLF. They are as follows:

Coil Gain. The coil gain control matches the coil and the detector
circuitry to the prevailing soil conditions so as to achieve maximum
depth.

Tuning Speed. The Pulse Devil automatically adjusts it's circuitry to
it's most efficient operating point. The speed that the detector
should meet this point is dependent on the following:

1, Ground variation speed. (Rapidly changing ground requires a faster
speed).

2, Small nuggets are easier to hear with a faster speed.

3, Large Nuggets are picked up deeper with a slower speed.

Ground Balance. The ground balance is a 10 turn control. Note that
this control is fitted with a lab quality turns counter. The counter
allows very precise setting of the control.

The coil is lifted and lowered in an up down motion. The control is
adjusted until the output tone does not change as the coil is moved.

Sample Delay. This control is set as close to zero as conditions
allow. The control setting may be reduced if the tuning speed is
decreased.

Disc. This is a full range discrimination control.
Low settings will also reject nails and iron and most hot rocks.
Higher settings will also reject thin aluminium foil.

The maximum settings are only used for coin hunting. A drink can pull
tab along with foil and iron can be rejected while most coins are
accepted.

Threshold. This control is adjusted to where the audio signal is just
discernable. This gives maximum depth.

Interference. This control is adjusted to null out any interference
that might be encountered. The control is turned until the threshold
tone is quiet.

Matrix (Salt - Normal) switch. Most inland sites require normal
ground balancing. Salt flats and beaches will require the salt setting
to be used.

Handle mounted, Mode - Tuning switch. This switch locks when thrown to
the left and is momentary when thrown to the right.

The left position is for normal searching.

The right position is for pinpointing the target.

Simply bring the coil over the target to where the audio is the
loudest and momentarily press the switch to the right. The target will
now only cause an audio signal when it is closer to the middle of the
coil.

There is another switch which is just visible on the front of the
detector in the photographs. This is a battery select switch. The
prototype had two battery packs inside which were switch selectable.
This feature will not be on the production version of the detector as
one pack lasts about 10 hours.

A built in speaker provides plenty of sound output. The speaker is
disconnected by plugging a set of headphones into the headphone jack.

Power is provided by a 14.8V Lithium Ion battery pack. A universal
mains charger and a 12 - 24V vehicle charger are provided. Spare packs
are simply changed in the field. These packs are also very reasonably
priced.

I am close to finalizing the production model. I still have to test
the new ground control circuit and a few other improvements. The size
of the detector will shrink quite a lot compared to the above prototype.
All the Best
Dave


Goldlover

 

[bakergeol]

To be honest I dont know why he'd bother producing the Pulse Devil. The same goes for the GoldScan and Infinium. They will never produce a Pulse unit anywhere near as good as Minelab.

They all cost an arm and a leg, go no deeper than a well set up VLF, and have useless discrimination on them.

It's got me buggered.

Why produce the Pulse Devil? It will not be as good as the Minelab PIs? Here is a quote by Dave on the depth of the PD1000.

"The Pulse Devil seems to have slightly more depth than Minelab PI's. As an example, a particular coin (Australian 20C from 1981) was detected at 14.5 inches with a Minelab GP3000 fitted with an 11 inch Dual D coil and 16 inches with a mono coil.

The PD1000 tested indoors in my lab got 18 inches on the same coin using an 11 inch coaxial coplanar coil. (mono coils cannot be used on the Pulse Devil "

Now anyone who has USED a high end PI such as Minelab's SD2200D(I used to own this ) or a GP3000 knows that these machines will totally wack ANY VLF in the depth department. If someone disagrees with the above statement it means they simply have never used one. Do you really think someone would pay $3500 for a high end PI which has the same depth as a $800 VLF?

Now the real issue all along is really not depth but metal ID for PIs. If Dave can produce a PI with accurate metal ID with depth it will indeed make all VLF's yesterday's BFOs. You see the current problems with VLFs simply are not going to be resolved. Ground mineralization always will effect depth and metal ID of all VLFs. The deeper you go the more ground mineralization your VLF reads. All good targets will read "iffy" toward the iron end with depth. However PIs are not effected by ground mineralization as much as VLFs which is one of the reasons they have superior depth. The question is would a PI with metal ID mean an end to the questionable signals with depth which we see on all VLFs? My GS5's high tone low conductor tone is the same for all depths.

So a lot of people are indeed following the progress of the Pulse Devil. The next level in technolgy above a VLF? Wouldn't you watch a machine which may be the deepest machine out there with the best metal ID? Time will tell.

By the way my Goldscan 5 is quite superior to any Minelab PI in the metal ID department which is why I bought it. Like the Minelab PIs it doesn't have discrimination but metal ID.

George

 

[Charles (Upstate NY)]

It amuses me that the electronicly educated still think that the future lies in Pulse Induction, which has reached it's height and has nowhere to go from here, both with depth increase and discrimination.

Dual Ace that is just altogether wrong, you seem to lack an understanding of the two technologies and their limitations.

 

[bakergeol]

Hi Dual Ace
First off thanks for your input. I love a good debate without folks getting nasty.
The air test data I provided was not meant to spark a air test versus ground test debate. Heck I have air tested coins with VLFs at incredible depths too, however put these in mineralized ground and those incredible depths are gone. Besides metal ID of a coin at 18" for a VLF?- hardly possible.The air test data I provided was to counter your statement " To be honest I dont know why he'd bother producing the Pulse Devil. The same goes for the GoldScan and Infinium. They will never produce a pulse unit near as good as Minelab". As Minelab PI users think that depth is the only real test of a PI(I disagree). I put the data in to illustrate that the Pulse Devil will be at least comparable to a Minelab PI in the depth department.

In a way I am surprised I am having this debate with someone from Australia the "Land of bad ground". Surely you are not suggesting that the thundering horde of Aussie Minelab PI gold prospectors could achieve the same depths and results as a good VLF? Surely you have to give the PI the advantage in mineralized ground?

Can't speak for the PD or the Infinium as I have never used them- only the GS5. For high conductors such as coins the GS5 indeed has depths which are only comparable to high end VLFs in mild ground.However, deep high conductor coins can never be confused with deep iron. Besides with a adjustable 10uS delay it was never designed for that mission. Low conductors such as small high value gold rings are what it was designed for. In this regard at least with the VLFs I have compared it with low conductors in the ground it certainly has a depth advantage.

There is a problem discussing what a "good" PI is among Minelab PI owners. As these folks "dig it all" in areas of OZ or desert areas in AZ depth is the only consideration. PI metal ID just doesn't enter the debate. What about the rest of the world? Yep the GP3500 is certainly deeper than than my GS5(or the Infinium) but I won't dream of using one in my neck of the woods unless i wanted to spend all day digging deep trash.

Regarding your question
Do you trust your GS5 when detecting for gold in nugget and specimen form amoungst the junk piles George?
First off I am hardly as successfull as you OZ guys. Depends on what you mean by junk piles? You can never confuse a 1/3 ounce nugget and up from any iron any size- any depth with the GS5. A tin can will always produce a different tone than an AL can(or large gold nugget). Remember this is not a GP. Now for gold less than 1/3 ounce some hardened steel will also produce a tone similar to gold and you dig those. (Actually I don't dig most of these as I use a small mag mounted to my coil which tells me it is steel.)


George

 

[mxtswinger]

Thanks a bunch for the info George. I still have tons to learn on the matter of PI.

Didn't mean to start a ruckus