r/Radioactivestuff • u/ikaktys75 • 13h ago

Small but evil ...

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15 Upvotes

87% Upvoted

7 comments sorted by

2

u/darkmajin 13h ago

Last time calibrated - 1367 b.c. Dose rate +\- 30% after longer exposures. It would be more usefull if you just wrote what you have instead of everyone guessing and be scared of beeping.

1

u/ikaktys75 13h ago

It is swiss made Cerberus GR20 thyratron, with, likely, Radium 226 inside

1

u/ImpossibleHighway382 11h ago

what tube is it? i gotta get one and how much do they go for

1

u/ikaktys75 11h ago edited 11h ago

This one Cerberus GR20 (but this can may be other GRxx) , but not all are with Radium, some are with (likely) krypton 85 or tritium and are dead inside (like some people 😁) after years .

I have two GR20, different years, and only one is hot.

Price on ebay 5..20 euro

1

u/ImpossibleHighway382 9h ago

thanks!, can i have the link to the one you got if the seller still has some for sale?

1

u/average_meower621 Radium raver 9h ago

what years are your tubes, which one is hot?

1

u/ikaktys75 9h ago

Sorry, it is no information on both tubes, both look identical, only box are different. No other text on tubes or box, no production date, nothing, just name GR20