The blackout coating is probably an electrical conductor as well ( graphite?) and may have added benifits besides light blocking. Will ask the manufacturer...
Let me rephrase that statement. The sparks are all between the electrodes, and do not indicate the direction from which the radiation arrived like in a cloud...
Somehow, I would beleive the pulser over the scaler. Look at the accuracy of the timebase in there, it is remarkable. The MP-1 is the most accurate pulser ever...
Yes we can notice the liberal arts trining by the font style. Engineers only use block letters. The Ludlum probe sounds like a 44-38. If so, it is energy ...
225K CPM X2= 450K actual reading. Keep ALL your probes ( that's my adivce), add more as needed. Model 500 scaler is a good solid unit, a university standard of...
Hello Jim. My MCPO nicknamed me ET for Extra Testical back in the day, If i knew then what I know now i dont think i would have worked as quickly as i did. I...
I did not ever deal with Torpex but as a Sailor who was a Devil Doc det cord was a well liked thing to keep handy and near by and by far the most effective way...
hi Tracy ,hope your new year will be all good ,I always enjoy your web site & look forward to reading your posts.I hope you dont mind but I have a few young...
Hi, The PDRM82 Probe (when it arrives) is 500V so be careful when interchanging! American probes tend to be 900V, European 500V. Regards, Robert. ... at ... ...
I've posted front and back pics and a TS5 schematic of a testset that has proven to be most useful to me. The pulser will output 150/300/1500/3000/15000/30000...
FYI, did some tests using a LENi ( Lionel schematic) and pulser to test HV drop-off at very high count rates. first the max CPM reading on a regular CDV-700 is...
Geo, I assume the pulser just injects AC coupled pulses into the GC input circuit. A real GM tube will also pull some net DC current when the gas-discharge...
John, you are quite correct, and my further investigations show this to be factual- trying to measure the HV at the probe jack behaves much differently with an...
Hi, Anyone need a invitation for a Gmail account? You can store up to 2 GB on mail. Also big files. I just uploaded a 12 Mb manual file. It's easy for exchange...
... valuable when measuring small differences in radiation levels. Like the difference between bananas and brazil nuts. ... Tracy; If you do find some Brazil...
same here, see my earlier post " My nuts are not radioactive". Geo ... From: Bill Beamon To: GeigerCounterEnthusiasts@yahoogroups.com Sent: Sunday, January 08,...
Hello Bill. The only way I have been able to measure any radiation from brazil nuts is by shuking them and making a paste of the meat with a mortar and pestal,...
Thanks Tracy; I've seen it stated that many of the Brazil nut trees grow in a region which has a lot of monazite sand- fairly warm stuff, and that the trees...
Hi, I got a used BSP-100A without scaler or base unit, and am asking if anybody knows the connector schematic. There is a small round 7 pin connector which is...
Helmut, who makes that probe? Geo ... From: Helmut Wabnig To: GeigerCounterEnthusiasts@yahoogroups.com Sent: Wednesday, January 11, 2006 3:13 PM Subject:...
... any background, And count for very long periods of time. Thanks for the details of a positive b-nut measurement. I think that there's an equation relating...
I believe that the HV power supply is inside the probe on the ADM-300 external probes. Has anyone found a source for the 7 pin cables? Geo ... From: Robert...
Robert how about a review of the '300? Geo ... From: Robert Atkinson To: GeigerCounterEnthusiasts@yahoogroups.com Sent: Thursday, January 12, 2006 6:55 AM ...
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