If you need a complete kit assembled or unassembled,  or just a PCB, a partial kit or even just some component,  please feel free to contact me at the e-mail address below.
Also I have in stock following geiger-muller tubes:

SBM-20  (beta and gamma)
SBM-20U (beta and gamma)
STS-5     (beta and gamma)  
SBM-21  (beta and gamma)
SI22G      (gamma)                        
SBT-9      (alpha beta and gamma)
SI-29BG  (beta and gamma)      
SBT11     (alpha beta and gamma)
SBT11A   (alpha beta and gamma)
SI19BG    (alpha beta and gamma)
Beta-2      (alpha beta and gamma)
SBT10A   (alpha beta and gamma)
SI8B        (alpha beta and gamma)

Please check  THIS eBay LINK or contact me directly by e-mail :

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Best if you write to me in English,

but you are also welcome to write to me in Russian, Polish, German, Italian or French.

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Best regards!