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4 x NEW! SBM-20U Gieger Tubes - Sensitive to Beta, Gamma, & X-Rays - USA Stocks, US $79.95 – Picture 0
4 x NEW! SBM-20U Gieger Tubes - Sensitive to Beta, Gamma, & X-Rays - USA Stocks, US $79.95 – Picture 0

4 X New! Sbm-20u Gieger Tubes - Sensitive To Beta, Gamma, & X-rays - Usa Stocks

US $79.95

  • Rancho Mirage, California, United States
  • Jul 16th
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Russian-Made SBM-20U (СБМ-20U) Geiger Muller Tube New. Pre-tested and Guaranteed. The SBM-20U tubes are the finest GM tubes available. They were made at the height of the Cold War in preparation for a Nuclear War that never happened. These particular tubes were imported direct from Russia and are being shipped locally from California. Each tube has been rigorously checked and tested before shipping and in guaranteed to perform to your highest expectation. Here are the General Specs (as translated from the original Russian): Geiger Tube Model: SBM-20U Suggested Anode Resistor 5M Operating Voltage 360 - 480 volts Trigger voltage 260 - 330 volts Plateau 100 volts Background Radiation 60 pulses/minute Capacitance 4.2pf Life (pulses) at least 2*10-10 ------------------------------------------------------------------ This auction is for 4 Tubes, shipped FREE anywhere in the United States. Each tube is individually cushion-wrapped and shipped domestically with a tracking number. Any questions, please let me know, thanks.
“The are new SBM20U. It is made with one side open (anode) and the other side capped (cathode). Although new, the tube may show some tiny dents. These do not effect function. The extended life of this tube is over two hundred years with normal background exposure.”
Model SBM-20U
Non-Domestic Product No
Modified Item No
Type Dosimeters
Country/Region of Manufacture Russian Federation
MPN Does Not Apply
Custom Bundle No
Brand Unbranded/Generic
Radiation Detector Type Geiger Counter
UPC Does not apply

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