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- Tue Feb 12, 2002 5:03 am
- Forum: General Discussion
- Topic: Old Geiger counter information needed
- Replies: 2
- Views: 1166
I have a U.S. Navy Radiacmeter IM-74/PDR-27C manufactured by the Admiral Corporation. The last calibration sticker is 1964, but it appears to be in good shape. It takes "D" batteries, but there is no indication on the case how they are arranged in the holder. Does anyone have any familiarity with th...