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David Boyett | profile | all galleries >> Civil Defense Radiation Detection Equipment FCDA OCD FEMA GM CD V-700 Geiger Counter, Survey Meter, Dosimeter & Kits >> Extended Range CD V-700 ENI Geiger Counter tree view | thumbnails | slideshow

Extended Range CD V-700 ENI Geiger Counter

An extended range CD V-700 geiger counter was produced in the early 1960s that would increase the scale by a factor of ten. The difference was a special GM tube named the OCD-D-101. This tube was less sensitive than the standard 6993 GM tube that is found in the civil defense geiger counter. In addition to the new tube a decal was placed over the top of the standard scale increasing the range by a factor of 10. This special tube was intended to meet the void between the low level CD V-700 and the high range of the CD V-715 and V-717. The extended range CD V-700 covers 0-500 mR/hr and the standard counter is 0-50 mR/hr.

OCD-D-101 Lionel GM Tube Letter
Link: http://www.orau.org/ptp/Library/lionel-101-tube.pdf
Lionel D-101 GM Tube Removed From Probe
Lionel D-101 GM Tube Removed From Probe		 Electro Neutronics Inc - CD V-700
Electro Neutronics Inc - CD V-700		 Electro Neutronics Geiger Counter
Electro Neutronics Geiger Counter		 Geiger Counter - Extended Range - CD V-700 Civil Defense
Geiger Counter - Extended Range - CD V-700 Civil Defense
Civil Defense CD V-700
Civil Defense CD V-700		 Extended Range - Count Meter
Extended Range - Count Meter		 Civil Defense CD V-700
Civil Defense CD V-700		 Geiger Counter
Geiger Counter
OCD-D-101 Geiger Mueller Tube
OCD-D-101 Geiger Mueller Tube		 D-101 GM Tube Geiger Counter
D-101 GM Tube Geiger Counter		 OCD-D-101 GM Tube
OCD-D-101 GM Tube		 Geiger Tube GM
Geiger Tube GM
Civil Defense
Civil Defense		 Battery Compartment
Battery Compartment		 Top (D-101 GM Tube) Bottom (6993 GM Tube)
Top (D-101 GM Tube) Bottom (6993 GM Tube)		 D-101 GM Tube Shown Inside Probe
D-101 GM Tube Shown Inside Probe
D-101 GM Tube Next To Probe
D-101 GM Tube Next To Probe		 Response to Check Source D-101
Response to Check Source D-101		 Response to Check Source D-101 GM
Response to Check Source D-101 GM		 Response to Check Source - Geiger Counter
Response to Check Source - Geiger Counter

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