(TEXT only here, PDF with photos in the GCEpage3 files section) Connecting a Scintillator Probe via USB to a Personal Computer. Do you have some old...
Nice project! THANKS for sharing with us, Helmut. Geo (for the group) ... From: "Helmut Wabnig" <hwabnig@...> To: <GeigerCounterEnthusiasts@yahoogroups.com>...
George, Attached is a schematic for the RM-14. I don't remember where I got it and Quality is not the best. If you get a better one, I would appreciate a copy....
Hello all is there a FAQ on how to fine turn/calibrate a cdv700 with out a source? I have access to O-scopes ,signal gens, and all sorts of high end lab ...
... there is another very interesting USB converter here: http://www.elv.de enter "UM 100" in the search field without the quotes. It is available as complete...
Here are some things from the archives that George put togather a couple of years ago hope this helps you out, Mark in NY Subject: Calibrating the Counter part...
Hi : I recently decided to convert my ENI CDV-700 into a LENi. As a first step I wanted to mount a BNC jack to the case. I don't have a drill press, so I...
This year we added a 4 channel geological gamma spectrometer to the mobile setup. The 4 channels consist of Uranium only via the Bi-214 @ 1746 keV Thorium via...
Looks like you've got the GAD 6 running. I should drag mine out and head out for a rad desert scumming expedition. On my rare earth claims there are thorium...
Using a GEOmetrics GR-310 with internal 2" x 3" this trip. Have to figure stripping factor manually, but otherwise very simple to use. All cannels are one at a...
Very cool. I am also able to get GEOs post once again. I dont know whats going on with yahoo but I havent gotten a message geo's posted in 3 months and lost...
Hi : I received the following from one of my correspondents who plans to list a bunch of 717s on Ebay. "I checked out both meters while observing some people...
... plans ... ray ... foot. ... The ... sheilded ... dose ... that ... his ... Nice report! Were I an industrial radiographer I could see having a 717 around...
First the initial radiation calculation of 300R/H from 60 Ci at one foot is correct ( well, pretty close, actually 304R/H). Doubling the distance to two feet...
I've built these and can't get them to work on lab type radiation samples. Anyone who has gotten one to work, we would like to hear about it. Or anything...
Hi, The use of neons has been discussed before, basically they do not work. The electrode geometry is wrong, the gas pressure is wrong, there is no quench gas...
I built it but mine didn't work either. I always get nervous when I run house current through a breadboard. Too used to 5VDC. Thanks for the Wenzel link....
Looks OK to me, someone has a TDR set for sale, bet they want a lot more than the opening bid for it though(it has a reserve). And probably not many people...
Hi, What is the use for such a TDR set? I have a 7S12 TDR/sampler unit for my 7904 Tek, but I'm just an amateur. Any info would be helpfull. Cheers, Oscar ......
When I went to the link it redirected me to an ebay login asking for my password which on my computer never happens, I get auto logged. Suspicious I tried...
In a message dated 2/12/06 4:45:58 PM Central Standard Time, kapitein.iglo@... writes: Hi, What is the use for such a TDR set? I have a 7S12 TDR/sampler...
A Time Domain Reflectometer (TDR) is used to measure the impedance of a coaxial cable and determine if there is damage along the cable. It transmits a very...