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Russian SBM 20 Geiger Muller Counter Tube for Military Need USSR / New / TESTED!, US $410 – Picture 0
Russian SBM 20 Geiger Muller Counter Tube for Military Need USSR / New / TESTED!, US $410 – Picture 0

Russian Sbm 20 Geiger Muller Counter Tube For Military Need Ussr / New / Tested!

US $410

  • European Union, Bulgaria
  • Jan 29th
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I offer to your attention 1pcs Russian Geiger Muller SBM20 Vintage Made for Military Need Tube Minimum Anode Resistor (meg ohm) 1.0 Recommended Anode Resistor (meg ohm) 5.1 Recommended Operating Voltage (volts) 400 Operating Voltage Range (volts) 350 - 475 Initial voltage (volts) 260 - 320 Plateau length (volts) at least 100 Maximum Plateau Slope (%/100 volts) 10 Minimum Dead Time (at U=400V, micro sec) 190 Working range (mkR/s) 0.004 - 40 Working range (mR/h) 0.014 - 144 Gamma Sensitivity Ra226 (cps/mR/hr) 29 Gamma Sensitivity Co60 (cps/mR/hr) 22 Inherent counter background (cps) 1 Tube Capacitance (pf) 4.2 Life (pulses) at least 2*1010 Weight (grams) 10 / 9 (See pictures for more details) ORIGINAL OLD PRODUCTION!! ** Please take of your free time and visit my Store. I have more exclusive and rare tubes on best prices on market. Every one tube is 100% original and Authentic. Thank you for your Interests **

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