CD V-710 Gamma Survey Meter Radiation Kits Main Radiation Kits CD V-777 Kit CD V-777A Kit CD V-777-1 Kit CD V-777-2 Kit CD V-777-4 Kit CD V-755 High School Kit Other Sets CD V-781 Aerial Monitoring Set CD V-757 Barrier Demonstration Set CD V-457 Class Demo Set Radiation Instruments CD V-700 CD V-700 Specials CD V-710 CD V-711 CD V-715 CD V-717 CD V-720 CD V-750 and Dosimeters Back to Shelter Supplies Main Back to Civil Defense Museum Main		This picture shows all of the different models of CD V-710. In front is another Jordan Model-3 open to show the inside workings. The CD V-710 is one of the early issue Civil Defense instruments. The only documented date I have seen in relation to this instrument is 1955. The Jordan Model 2 manual I have has a copyright date of 1955 on the back cover. The CD V-710 was superseded by the CD V-715 when it was issued later in 1962. The entire family of CD V-710s went through disposition in the 1960s. Most of the CD V-710s found today have had the labels defaced and the "CD" logos marked over. This was done during the disposition process. (See Below) The CD V-710 was manufactured in both metal and plastic cases. The early CD V-700 had one model with a plastic case as did the CD V-720. The CD V-710 is a medium range radiological survey meter that reads only Gamma radiation. The range of the CD V-710 is 0-50 Roentgens per hour. The scale of the meter reads in 0-0.5, 0-5 and 0-50 R/hr using an Ion Chamber detector. All of the 710s use various combinations of D-Cell and 22.5 Volt batteries. The CD V-710 Model 1 might be the most hard to find of all the CD meters. I have only ever seen the one (pictured below) that I have in my collection. I've never even seen photos of another 710 Model 1. Disposition Process Of Obsolete CD Meters. Here is a good example of a CD V-710 Model 4 that has gone through the disposition process. The old CD V-710s are pretty commonly found in this condition. The CD emblem and identification label have both been painted over on this meter. I have seen some of the plastic case CD V-710s that have had the ID labels burned though with a soldering iron but it seems like most were painted like this. To see the document describing the disposition process click here. The document is in Adobe Acrobat pdf format. CD V-710 Model 5 Victoreen In March of 2006 I got a partial CD V-777 kit consisting of a this CD V-710 and a CD V-720. This is one of the nicest items in my collection. It even still has the original batteries and the strap with it. A very nice example of the set of items that came with CD V-710s when they were new. CD V-710 Model 1/El-Tronics Model Number SID-1 This is the CD V-710 Model 1 or El-Tronics SID-1. Notice the manufacturers model number SID-1 is printed on the side of the case. The CD V-700 Model 1 and Model 2 also have the manufacturers model numbers as part of their identifications but the later CD instruments are all identified by the CD V numbers alone.This unit is similar in build to the CD V-710 Model 2 by Jordan. I've seen some photos of El-Tronics Geiger counters and they all appear to have the huge cast iron handle that this meter has. The huge handle makes the zero knob virtually inaccessible. The 710 Model 1 and Model 2 both have all metal cases where the 710 Models 3-5 all have plastic cases. This El-Tronics unit takes no less than 5-22.5 volt batteries and 1 D-cell to power it. This unit did have a CD emblem on the case but it was scratched off and the paint touched up with spray paint.