I use the Gamma_Scout for serious measurement with no problem. You can set the sampling time from 1 minute to 7 days. I permits measurement of Gamma,...
... Geo, I think you are being confused by the Russian nomenclature, which tends to call "dosimeters" things we call rate-meters. In english, a dosimeter tells...
I resently bought this unit off ebay from MicroElecronics. I'm trying to find out more about the GM tube. It was described as an H-260, but it doesn't match...
Is your tube exactly like the HP-260 or only similar to the HP-260. What are its dimensions to the nearest 1/16 inch? There are a number of very similar mica...
Hi all, About 25 years ago i built a geiger counter from a popular electronics magazine, it was just a battery powered high voltage source using a couple of...
... electronics ... a ... simply ... It ... had ... was ... MOD ... which ... 1.25 ... off ... cylinder ... and the ... am ... Is this the one you mean - ...
Hi Dave, I guess you are in the UK. It sounds like the CV2246 tube used on the 50's and 60's contamination meters. Rubbercovered with a two pin base. These...
Hi all, Thanks for the replys, yes it does look similar to that one. I have managed to find the unit, but it has stopped working, maybe the tube is past its...
Ah ha! Now the answer is easy: What you have, I believe, is an HP-190 Probe. The HP-190A housing is ABS plastic wheres the HP-190 is metal. The Gamma...
Hi all thanks for the many replies to my request. The tube definately looks like this one http://earlywireless.com/images/valve_pics/CV2247.jpg It does seem to...
Yes the mobile set uses a 1 x 1, gamma only. CPM was max off the scale+++. The truck was kind enough to pull off the road for a close examination with a Ludlum...
Hello ,everyone sounds like GEO had lots of fun ,happy to hear he made it back home safe &sound my guess has to be I feel since you drove through a dusty...
Geo You will not get access to Callaway. My friend is an RSO for the plant and i still can't get a tour. He said if 9/11 haven't happened i could get time in...
Yup, 9-11 changed a lot of things. Geo ... plant ... could ... photos, ... smart ... report. ... Mining), ... tour ... site, ... Forbes ... glowed!!!). Many ...
When I got into this rad-hobby a few years ago, I was hoping to eventually get a small reading from *something* with inexpensive equipment. Never did I dream...
I recently obtained a large chamber ionisation doserate meter (99p on eBay, it even had 4 "D" Duracell's in it :-). This has a 5.5" diameter chamber and a...
Robert do you happen to have one of my radium sources with 5 or 6 radium watch hands in it for comparison> ? Did the Beta shield come with/ designed for the...
Verify your distance-to-center estimation by backing the source off until the reading is reduced to 1/4th. This will be twice the original distance. Don't...
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