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Anonymous
Guest
The article that I posted on my Technology Forum on 19th August referring to
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A
Anonymous
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Hi Eric,
I admire your candour, and perhaps more importantly, your sense of humour. It would be so easy for an individual with your knowledge and history to display the same so differently from the route you took. Bravo!! I printed your posting at the time and it went into the - "must read = too hard" basket. Congratulations.
g
I admire your candour, and perhaps more importantly, your sense of humour. It would be so easy for an individual with your knowledge and history to display the same so differently from the route you took. Bravo!! I printed your posting at the time and it went into the - "must read = too hard" basket. Congratulations.
g
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Anonymous
Guest
Ahhh! bugger!! I was quietly working up to a demolition job! Yours forever in the pursuit of knowledge .Jim S.
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Anonymous
Guest
Hi Jim,
What were you going to demolish? The long grain theory? I was surprised that nobody came back quickly and said "what a load of rubbish". One of the best pseudo tech articles I remember was in the early sixties in an audio journal, for a stereo system using only one speaker. The single speaker was on rails at the end of the room such that it could run from right to left and back, powered by a motor. When in the left corner it was switched to the left channel and vice versa in the right. The cabinet and drive units were made of very light materials so that the speaker could be driven very rapidly from corner to corner. To complete the illusion, the end of the room was illuminated by a synchronised strobe which flashed only when the speaker was in either corner. That gave the visual impression that there were in fact two speakers. The article covered two or three pages with technical data and diagrams and it was only in the last paragraph that a doubt came into the mind when it was recommended that a notice was displayed in the room warning listeners not to walk between the speakers during a performance. Also it was the April edition.
On the subject of ground cancelling, I will do a genuine post shortly.
Eric.
What were you going to demolish? The long grain theory? I was surprised that nobody came back quickly and said "what a load of rubbish". One of the best pseudo tech articles I remember was in the early sixties in an audio journal, for a stereo system using only one speaker. The single speaker was on rails at the end of the room such that it could run from right to left and back, powered by a motor. When in the left corner it was switched to the left channel and vice versa in the right. The cabinet and drive units were made of very light materials so that the speaker could be driven very rapidly from corner to corner. To complete the illusion, the end of the room was illuminated by a synchronised strobe which flashed only when the speaker was in either corner. That gave the visual impression that there were in fact two speakers. The article covered two or three pages with technical data and diagrams and it was only in the last paragraph that a doubt came into the mind when it was recommended that a notice was displayed in the room warning listeners not to walk between the speakers during a performance. Also it was the April edition.
On the subject of ground cancelling, I will do a genuine post shortly.
Eric.
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Anonymous
Guest
Hi Eric
What about my PCB with 45 TTL circuits to test your theorie.... joking!
Very funny.. I was actually try to imagine it in my head, so you got me too.
So know I will instead consider my idea how to induce so much energy in a metal body in the ground so that my earthshake detector can pick it up!
Mark
Mark
What about my PCB with 45 TTL circuits to test your theorie.... joking!
Very funny.. I was actually try to imagine it in my head, so you got me too.
So know I will instead consider my idea how to induce so much energy in a metal body in the ground so that my earthshake detector can pick it up!
Mark
Mark
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Anonymous
Guest
Hi Eric'
Since you have come clean as it were, may I ask if this is the appropriate timing for you to comment upon the progress with your book(s).
g.
Since you have come clean as it were, may I ask if this is the appropriate timing for you to comment upon the progress with your book(s).
g.
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Anonymous
Guest
Y'know Eric, technical gobbledegook reads the same with me regardless of whether it is fact or fiction !. But at the end of the day I know how a detector is really managing to cancel out ground noise regardless of whether it's long grain, barley grain or just plain round grain 
)).
In fact, most false ground signals do have one direction to them and if you check them at right angles they dissapear.
I'm about to head out again chasing "crumbs" on the drying salt lakes, where lately I've found 97 little nuggets weighing 33 grams. Damn hard, boring work but I guess someone has to do it !.
Cheers, Chris Hake.
)).In fact, most false ground signals do have one direction to them and if you check them at right angles they dissapear.
I'm about to head out again chasing "crumbs" on the drying salt lakes, where lately I've found 97 little nuggets weighing 33 grams. Damn hard, boring work but I guess someone has to do it !.
Cheers, Chris Hake.
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Anonymous
Guest
That story kind of reminds me of a gentleman named "Magic Alex", a supposed electronic genuis that the Beatles hired in 1966 to build them a recording studio. Magic Alex told the John Lennon he had developed wallpaper that was in effect one big stereo speaker and the walls would come alive with sound.
James
James
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Anonymous
Guest
Hi Chris and all,
Although my post was fictitious, there were facts buried in it and I also got some facts in return that are interesting. Your point about false ground signals disappearing if you scan at right angles is one of them. Have you dug one to see what it is? Hot rock maybe? Perhaps it is something to do with remanent magnetism in such rocks. I have some here that show N and S poles when tested with a compass.
Eric.
Although my post was fictitious, there were facts buried in it and I also got some facts in return that are interesting. Your point about false ground signals disappearing if you scan at right angles is one of them. Have you dug one to see what it is? Hot rock maybe? Perhaps it is something to do with remanent magnetism in such rocks. I have some here that show N and S poles when tested with a compass.
Eric.
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Anonymous
Guest
Hi Graeme,
Many thanks. Electronics can be a dry, heavy subject and a sense of humour is essential to preserve some measure of sanity.
Eric.
Many thanks. Electronics can be a dry, heavy subject and a sense of humour is essential to preserve some measure of sanity.
Eric.
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Anonymous
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It's interesting how a post titled "Confessions" gets 120 hits in four days while one on a mundane technical subject may not achieve that in four weeks!!
Eric.
Eric.
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Anonymous
Guest
Eric,
O.K. Fun enough. Where are these integrator
circuits? Please excuse my blunt question - I am still chuckling.
g
O.K. Fun enough. Where are these integrator
circuits? Please excuse my blunt question - I am still chuckling.
g
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Anonymous
Guest
Eric, the false ground signals are usually nothing but strong locallised magnetics. When you dig them they vanish because you have broken up the ground. But you still have to investigate them because they sound similar to a BIG DEEP nugget !. A burnt out tree stump sounds similar.
Hows the EF2300 coming along ?)
Cheers, Chris Hake.
Hows the EF2300 coming along ?
)Cheers, Chris Hake.
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Anonymous
Guest
Hi James,
Saw some stuff at an exhibition once called Piezofilm. It was just like the regular aluminium coated mylar film to look at, but if you applied a voltage between the faces it deflected. For a demo. they made a balloon of the material and connected it to an amplifier. So here you had this balloon emitting music and giving a 360 degree dispersion of sound.
Eric.
Saw some stuff at an exhibition once called Piezofilm. It was just like the regular aluminium coated mylar film to look at, but if you applied a voltage between the faces it deflected. For a demo. they made a balloon of the material and connected it to an amplifier. So here you had this balloon emitting music and giving a 360 degree dispersion of sound.
Eric.
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Anonymous
Guest
Hi Eric,
I am a newbe in here learning. I was getting a major headache sorting through all the posts in the forums for info on what to buy and how to use it.. ratings etc. I got all excited when I read your post saying "We can instead put small TV.." I thought that would be great when I got tired from the hugh learning curve at the beach with my Garrett. Well I guess I was a bit more blonde than usual today, as I believed it all till I read the other posts. giggle Thanks for the lighter side. (are u sure there is no TV on any of the units?) Carole
I am a newbe in here learning. I was getting a major headache sorting through all the posts in the forums for info on what to buy and how to use it.. ratings etc. I got all excited when I read your post saying "We can instead put small TV.." I thought that would be great when I got tired from the hugh learning curve at the beach with my Garrett. Well I guess I was a bit more blonde than usual today, as I believed it all till I read the other posts. giggle Thanks for the lighter side. (are u sure there is no TV on any of the units?) Carole