SBM-20, SBM-20U
Tubes, sockets etc. Parameters and characteristics SBM-20-1. main page back to list: SBM-20-1 Parameters and characteristics . SBM-20, SBM-20U HARD BETA and GAMMA GM DETECTORS GENERAL SPECIFICATIONS. Parameters: SBM-20 / SBM-20U: Gas Filling: Ne + Br2 + Ar: Cathode Material: Stainless Steel, 50 mkm: Maximum Length (mm)