Back at the start of the Cold War the first mass produced Civil Defence Geiger Counter was the Geiger-Müller counter Meter, Contamination, No. 1 set – stock number 5CG0012, of 1953. You still see these from time to time and many remained in use into the 1980’s. It was replaced in 1956 by the British Radiac Survey Meter No 2 which was adopted by the Royal Observer Corps until they took delivery of the better known and specifically built Fixed Survey Meter.
In 1982 Plessey Controls introduced the PDRM82 Portable Dose Rate Meter and this became standard issue for both Civil Defence and Military applications, a special version was created for the Royal Observer Corps, the PDRM82(F) which had an external Coax cable allowing connection to an above ground ionisation detector which ran up the FSM Tube to a polycarbonate dome.
Surprisingly these are allegedly still standard Military Issue today, despite significant advances in technology!!
We recently bought a couple on eBay for exploring a site that in the past was known for having ‘radioactive content’ but despite coming across very real evidence of radioactive items, including Cobalt-60 storage, we could not get even the faintest reading anywhere at the site….kind of good really as had the PDRM82 ‘lit up’ we would have been a bit freaked out….
Opened – Unknown
Closed – October 1968Nearing the end of visiting every ROC Post in Northamptonshire I went to Crick, knowing it to be in a sorry state from earlier reports at least I wasn’t shocked when I got there. Internally and externally the post is heavily vandalised with some evidence of small fires being started in the Observation Room and all manner of junk thrown down the shaft, including the hatch, hatch mechanism, sump piping and Counter Balance.Only very few remains from the original post are present such as traces of telecoms cabling and possibly what were original chairs. What’s left of the toilet door is laying on a pile of house bricks and decorated with a variety of road cones…