(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...
5804
GEOelectronics
K0FF
Feb 1, 2006 6:11 pm
Nice project! THANKS for sharing with us, Helmut. Geo (for the group) ... From: "Helmut Wabnig" <hwabnig@...> To: <GeigerCounterEnthusiasts@yahoogroups.com>...
5805
davids8559@...
schultzdl789
Feb 1, 2006 7:34 pm
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....
5806
Simian
civildefence...
Feb 2, 2006 7:30 am
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 ...
5807
Helmut Wabnig
oe8uww
Feb 2, 2006 11:39 am
... 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...
5808
docico325@...
docusn1
Feb 2, 2006 4:03 pm
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...
5809
bcer_eh
Feb 3, 2006 3:20 am
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...
5810
docico325@...
docusn1
Feb 3, 2006 5:22 pm
Does anyone by chance have a old Eberline PIC Ion chamber they wish to part with cheap ? Thanks Mark...
5811
GEOelectronics
K0FF
Feb 3, 2006 9:28 pm
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...
5812
D. Emer
kk7if
Feb 3, 2006 10:44 pm
Mark I have some PIC 6's and other eberline counters. email me at dfemer@... Dudley KK7IF ... From: GeigerCounterEnthusiasts@yahoogroups.com ...
5813
D. Emer
kk7if
Feb 3, 2006 10:57 pm
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...
5815
Geo
K0FF
Feb 4, 2006 6:06 pm
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...
5816
GEOelectronics
K0FF
Feb 4, 2006 6:30 pm
150 feet for GM tubes on some meters!...
5817
Tracy Albert
thealbert1
Feb 5, 2006 4:31 am
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...
5818
bcer_eh
Feb 6, 2006 1:40 am
Hi : Has this link been posted before? (http://www.martindalecenter.com/CalculatorsD_Rad.html). Just spent 3 hours browsing it....
5819
radiationguy44081
radiationguy...
Feb 7, 2006 1:36 am
ebay item 7588224823...
5820
bcer_eh
Feb 9, 2006 4:07 pm
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...
5821
DH
revtkatt
Feb 9, 2006 4:26 pm
... plans ... ray ... foot. ... The ... sheilded ... dose ... that ... his ... Nice report! Were I an industrial radiographer I could see having a 717 around...
5822
GEOelectronics
K0FF
Feb 9, 2006 4:28 pm
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...
5825
bcer_eh
Feb 12, 2006 3:41 am
Hi : Cool, easy and fun circuit can be found here : http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=1634 Includes schematic....
5826
GEOelectronics
K0FF
Feb 12, 2006 4:45 am
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...
5827
Robert Atkinson
robert8rpi
Feb 12, 2006 1:43 pm
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...
5828
Craig
siliconhillb...
Feb 12, 2006 4:01 pm
I think Charles Wenzel has the definitive experiments on this subject. It's great "home lab science". Check it out at: ...
5829
bcer_eh
Feb 12, 2006 6:29 pm
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....
5830
GEOelectronics
K0FF
Feb 12, 2006 6:34 pm
well I should mention that I WONT run house current, I used a 100V transformer. Geo ... From: "bcer_eh" <chanhopkins@...> To:...
5831
Robert W Hughes
rwhughe
Feb 12, 2006 8:37 pm
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...
5832
Kapitein Iglo
kapitein_igl...
Feb 12, 2006 10:45 pm
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 ......
5833
D. Emer
kk7if
Feb 13, 2006 12:41 am
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...
5834
wharpt@...
wharpt1
Feb 13, 2006 12:58 am
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...
5835
D. Emer
kk7if
Feb 13, 2006 1:10 am
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...
