Item Number CD V-715
CD V-715 Radiological Survey Meters
The CD V-715 is a portable monitoring instrument which measures gamma radiation dose rates as high
as 500 roentgens per hour. It is designed to be used by radiological Civil Defense personnel in determining
radioactive contamination levels that may result from an enemy attack or other nuclear disasters.
Instrument accuracy on any of its four ranges is within ± 20% of the true dose rate from Cobalt 60 gamma
radiation. This accuracy is maintained throughout a temperature range of -20° F to +125° F, relative
humidities to 100% and at altitudes from sea level to 25,000 feet.
The detecting element is an hermetically sealed ionization chamber. This chamber is located in the lower
front portion of the instrument to make the instrument equally sensitive to radiation from the bottom and
front. The ionization chamber plus the instrument case will together total more than 1000 mg/cm2 in
effective thickness to make the instrument insensitive to beta rays lower than 2 Mev in energy.
The ionization chamber is hermetically sealed to eliminate changes in sensitivity due to changes in air
pressure resulting from altitude changes, temperature changes, and moisture effects.
Meter reads 0 - 5 with switch selectable scales of: x .01 / x .1 / x 10 / x 100
Battery life is 150 hours of continuous use. This is based on the carbon/zinc batteries of the early
1960's, newer alkaline batteries should do much better.
Government cost in 1969: $15.86
Government Procurement - Fiscal Year 1955 - 1985 567,475
Inside View
Lionel Electronics Laboratories
OCDM Item Number CD V-715 Model 1
Note this is a "OCDM" Item Number
Uses 1 "D" size 1 ½ volt battery.
This unit has a cast cast aluminum top and aluminum bottom with schematics inside the case.
Front row, far left in top photograph.
Inside View
Landers, Frary & Clark
OCD Item Number CD V-715 Model 1a
Uses 1 "D" size 1 ½ volt battery.
This unit has a cast cast aluminum top and aluminum bottom with schematics inside the case.
Front row, middle in top photograph.
Inside View
The Victoreen Instrument Co.
OCD Item Number CD V-715 Model 1A
Uses 1 "D" size 1 ½ volt battery.
This unit has a cast cast aluminum top and steel bottom with schematics inside the case.
Back row, left side in top photograph.
Inside View
The Victoreen Instrument Co.
OCD Item Number CD V-715 Model 1B
Uses 1 "D" size 1 ½ volt battery.
This unit has a cast cast aluminum top and steel bottom with schematics inside the case.
Back row, right side in top photograph.
My Complete Collection of CD V-715 Survey Meters
Lionel Electronics Laboratories
CD V-715 Model 1 CD V-715 Model 1A
Serial Number: 2722 Serial Number: 00401
Click On Above Photographs For Larger Images
The Victoreen Instrument Co.
CD V-715 Model 1A CD V-715 Model 1A
Serial Number: 236465 Serial Number: 296832
Note ruggedized meter lens on left, this is the only difference between them.
The Victoreen Instrument Co.
CD V-715 Model 1B CD V-715 Model 1B
Serial Number: 48034 Serial Number: 74416
Note ruggedized meter lens on left, this is the only difference between them.
Landers, Frary & Clark
CD V-715 Model 1a
Serial Number: 81344