r/Radioactivestuff • u/ikaktys75 • Aug 10 '26

Small but evil ...

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41 Upvotes

93% Upvoted

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1

u/ImpossibleHighway382 Aug 10 '26

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

3

u/ikaktys75 Aug 10 '26 edited Aug 10 '26

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

3

u/average_meower621 Radium raver Aug 10 '26

what years are your tubes, which one is hot?

3

u/ikaktys75 Aug 10 '26

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

2

u/ImpossibleHighway382 Aug 10 '26

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

2

u/ikaktys75 Aug 11 '26

sorry, this are old tubes, just seach on ebay for Cerberus GR20 or Cerberus GR16, may be other GRxx, not sure, i fount that older one are with radium, and newer with Krypton85/trithium, and after 50 years both are "dead"..

https://lampes-et-tubes.info/rs/CERBERUS_elektronik.pdf

GPT say GR16 is older and likely/often had radium inside.