Quartz Fibre Dosimeter Chargers
The 1958-9 'Quartz Fibre Dosimeter Chargers, No. 1 and 2' were retained until the early 1990s as they do not require batteries at all (they incorporate a simple handle-driven generator). A later British civil defence dosimeter charger was developed by R. A. Stephen Ltd and manufactured from 1967–88, and uses a single 1.5 volt cell. It is similar to American dosimeter chargers.
Read more about this topic: Civil Defense Geiger Counters, British Civil Defence Instruments
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“The gods are partial to no era, but steadily shines their light in the heavens, while the eye of the beholder is turned to stone. There was but the sun and the eye from the first. The ages have not added a new ray to the one, nor altered a fibre of the other.”
—Henry David Thoreau (1817–1862)