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Home Which Prutchi David Pictorial Instructions for Modifying ENI CD V700 into David Prutchi’s CDV700 Pro Geiger Counter
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Pictorial Instructions for Modifying ENI CD V700 into David Prutchi’s CDV700 Pro Geiger Counter

David Prutchi's CDV700 Pro Geiger Muller Counter

We modified a surplus Civil Defense V-700 radiation survey meter made by Electro Neutronics Inc. (Model 6-b) into a very capable radiation counter capable of working with both Geiger-Müller and PMT scintillation probes. We modified the front panel to accommodate the new switches, connectors, and panel light. In addition, we placed a Veeder-Root count totalizer module on the side of the box. The new electronic components, including a Zener diode stack and a PMT preamplifier are wired directly to the original printed circuit board.

The following file shows each step in the modification process with large color pictures and expanded diagrams

Click here for tutorial in pdf format

Click here for datasheet of Veeder-Root totalizer module

More information and experiments available at:  www.diyPhysics.com

 
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