Eric: good luck on 2x4 lead sheeting - locally available at big box and hdwr stores, masonry supply centers would be much smaller size 10" to 16" x feet for...
Eric: one other thing - in commercial use, most lead sheeting is just end-butted together, not soldered into a continuous sheet (I know, military/civilan...
I have a local guy pour mine into cookie pans, He makes lead sinkers for fishing. He is usually a bit over 1/8". You can solder together the sheets pretty easy...
... referring to expired eBay items etc) and redundant. ... function of CDV700club group, ... GammaSpectrometry group. ... an ... technical material if that...
The gun only has to "shoot" once so it can be much lighter than a main gun which is made to fire many times. ... weapons designer Ted Taylor (died 2004) said...
Post of Boys 2nd Book of Radio and Electronics, ch 13, Prospecting for Uranium This is a scan of the classic chapter of the classic book by Alfred P. Morgan. ...
Try the great "prospecting for uranium",1951, US AEC, or "the atomic age opens", 1945, POCKET BOOKS - both small texts enough to give one the bug, and proceed...
I'm having some difficulty with my plan. I've harvested the components that I need off the old boards and I've put together a schematic from looking at the...
Hello guys, I didn't see any restrictions on selling things on here, so: I have 12 Eberline ESP-1's with Eberline HP-260 pancake GMs available for sale. They...
I will delete all references to Groupley in my computer I never intended to bother anyone My sincere apologies \ I have learned my lesson Please - I beg of...
Yeah, it's a no-brainer except for milling the fissionable material which I understand is no walk in the park. But once you have a tube and slug traveling...
... If the circuit is wired as drawn, you will probably want to remove the short across the earphone and coupling capacitor. If you leave the capacitor in...
That was a great read. Thank you. One thing though, I'm wondering if The Institute of Radio Engineers is still holding a grudge for losing the battle against...
So I should wire the headphone in series with the GM tube? From other schematics it shows that the headphone-cap arrangement in parallel with the tube. It has...
If the cap and phones are wired across the tube it potentially will work, but don't use one of the little crystal earbuds. The voltage drop across the big...
The site should be safe, both the IRE and AIEE have been gone for almost 50 years. ... A former IRE member -- Robert W. Hughes (Bob) BackYard Engineering ...
... Marshall, your circuit does not follow the one from Tony Messina in that he uses a 100k resistor from the GM tube cathode to ground to develop a signal...
To All, Has anyone reading this ever built or attempted to build the Berkley Labs Cosmic ray detector? I've read the available literature a couple of times...
In a message dated 2/5/2009 9:53:28 A.M. Central Standard Time, sharks63128@... writes: They are using a PMT base with a integrated dynode string and hv...
You don't really need to buy them. You can use one of Geo's diagrams in the files section to wire a two wire dynode string and ether home brew the hv supply or...
In a message dated 2/5/2009 10:29:18 A.M. Central Standard Time, sharks63128@... writes: You don't really need to buy them. You can use one of Geo's...
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