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 2.GQ Geiger Muller Counter
 My Geiger Müller tube for my GMC-080 ...

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T O P I C    R E V I E W
Uwe Kulick Posted - 10/07/2011 : 06:06:37
... is a SI-21BG, an old Soviet Geiger tube, maybe made in 1989.

SI-21BG Geiger tube

Working Range of Dose Power 50R/h
Maximum registering range 1000 Roentgen/hour
Working Voltage 350-450V (ca. 420 V in GMC-080)
Working Current 0,012-0,02 mA
Plateau Length/ Inclination 100V/0,15%/V
Own Background 0,2 Pulses/s
Working Temperature Range -50° +60° C
Length 70mm
Diameter 10mm

It fits well in the GMC-080 when using the GMC's tube clamps instead of the tube's ones

@all: Which Geiger Müller tube did You mount into Your GMC-080
1   L A T E S T    R E P L I E S    (Newest First)
ZLM Posted - 12/27/2011 : 01:34:52
Any tube can mont into GMC-080. As long as it fit and voltage within range 200-550V.

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