Saturday, 14 March 2020

Old Citizen 100m with Radioactive markers!



Vintage (well not really unless you call a 30 year old watch vintage) Citizen 281 9280 100m watch.


150 counts per second with a scintillation counter. Ok it's a sensitive counter but that's quite a bit over background levels.
Citizen 100m watch with Radioactive markers!

No comments:

Post a Comment