Low Range instrument – 0 – 50 mr/hr. ~ Radiation Detector – Geiger tube ~ Batteries – 2 “D” cells, 3 - 45v “B” cells ~ 4 subminiature vacuum tubes ~ Controls – range switch – 0 - .5 mr/hr., 0 – 5 mrhr., 0- 50 mrhr. ~ Yellow metal case with probe.
This really neat looking meter works but I had to test it with 9v batteries clipped together because the 3 45v batteries it uses are too expensive. I might, later on, build a small solid state power supply for it but that is in the future. {Note that the test source is on the bottom of the case.}
Click on the picture to enlarge.
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CDV-700 model 3 owners manual
The pages will each print out on a standard sheet of 8x11 paper (right click on the picture after you click to enlarge and save it to your computer).
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Book Cover |
Table of contents |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
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Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
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Page 15 |
After viewing the circuit diagram I was disappointed with the quality of the picture. Since I used the highest quality jpeg there is only one way to get better resolution. The above pictures are 72dpi. I will make available the original scan pictures at 200dpi. Download the file, cdv700mod3.zip , and open the files in a graphics program to print them out.
