A CD V-700 modified to read 50 r/hr would be ideal(?). Open to ieas/suggestions. Hi, I think most folks are working on getting the CDV-700 to be more...
If you are around ANY source that requires an insturment to be reading that high a value, you are either in the industry(and you would know there are far...
... sensitive. ... It just can't read that many pulses. They prevent the PS from going back up to 900 volts after a discharge. ... with the 6993 GM tube, you...
Geo had a great hack for ion chamber instruments (i.e, CDV-715, 717) He put a 1" hole in the ion chamber, and covered it with Mylar This allowed alpha...
... Let me address this question from a technical standpoint. True, most of us in this "hobby" want low range, high sensitivity detectors and systems. We have...
Phil, I think this was a zen riddle. There are two solutions, one complex involving dealing with electronically driving & handling an otherwise overdriven...
Why not this "surplus" tube as a spare? Whats the ups and downs? PROBE 5980 THESE PROBES WERE USED IN THE SEVERAL MILITARY COUNTERS TO EXTEND THE RANGE UP TO...
Mr. Telewinz, I think it might help everyone out if you mentioned why you want all of this equipment in the first place. My guess is its for some type of self...
... TO ... FOR ... The QPL 5980 is a small thin wall tube for Gamma detection only. A modern part number would be LND 726. They both return 3.5 CPS per 1...
The PDRM 82 appears to be a very good unit, aside from the fact that the Geiger Tube contians SR 90. The problem is the beta emmisions are to "kick start" the...
Mr. Cavanaugh, I had never heard that about the Sr-90 kickstarting the tube. That's a really interesting concept. I'd always heard that the radioactive source...
You may be right about an internal check source, but I do know that when it reads "FAIL" it is useless, so maybe it is to kickstart the electronics....
Tracy one version of silicone (not silicon) oil is called DMPS which stands for dimethylpolysiloxane (DMPS), It is a clear slightly viscous silicone oil that...
... models ... REPRINT OF 2002 REVIEW: Equipment review, Eberline E 520 and E 530 These two units are almost the same, with the exception that the E 520 has an...
Hey Geo! I have a question for you. I have a LENi with the GEO-210 internal probe and speaker etc. basically all the gadgets you can put on a LENi, which is I...
It is PDMS (polydimethylsiloxane) fluid. It is available in a range of viscosities from much much thinner than water through heavy tar. All are crystal...
In the last posting, someone was speaking of internal sources in that vein I have a piece of science fiction worthy equipment called a Gammalert. It is a ...
Hello. I have found out that the liquid in projection CRTs is a glycol compound. I have always had a problem with acronyms, There their, the're. My wife who...
The LENi uses 2 D cells compared to 4 D cells in the original ENi design, thus saving weight, complexity, and space ( which can be used for options and...
OK, I'm thinking of buying this one, Questions: Does it "eat" batteries (2-'D's)? Is there a web site or manual available? (so far I get no hits worthwhile on...
Eberline has been taken over by Thermo. Parts for these older units are either not available, or ridiculously expensive. If it is broken, or gets broken, you...
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