1x TESTED STS-5 SOVIET Military GEIGER MULLER GM COUNTER TUBE ???-5 SBM-20, US $380 – Picture 0

1x TESTED STS-5 SOVIET Military GEIGER MULLER GM COUNTER TUBE ???-5 SBM-20, US $380 – Picture 1

1x Tested Sts-5 Soviet Military Geiger Muller Gm Counter Tube ???-5 Sbm-20

US $380

Sofia, Bulgaria
Jan 30th

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STS-5 / ???-5 a predescessor of SBM-20 HARD BETA and GAMMA GM DETECTOR TUBES Vintage Made in USSR during the 50's, 60's and 70's for the Soviet Military Needs Please note- We will randomly choose year of production among our stock to pack your order. Production year of the GM tubes is not of importance, as they simply do not age. Genuine Russian Military Surplus <> TESTED with real radiation sample <> Condition - NOS, From Military Surplus This auction is for 1 (one) piece per bid! GENERAL SPECIFICATIONS Parameters STS-5 Gas Filling Ne + Br2 + Ar Cathode Material Stainless Steel, 50 mkm Maximum Length (mm) 108 / 101 Effective Length (mm) 91.0 / 83.5 Maximum Diameter (mm) 11 Effective Diameter (mm) 10 Connector Pin Operating Temperature Range 0C -40 to +50 ELECTRICAL SPECIFICATIONS Parameters STS-5 Minimum Anode Resistor (meg ohm) 5.0 Maximum Anode Resistor (meg ohm) 10.0 Recommended Operating Voltage (volts) 400 Operating Voltage Range (volts) 360 - 440 Initial voltage (volts) 280 - 330 Plateau length (volts) at least 80 Plateau Slope (%/100 volts) 0.125% / 1V 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 Maximum natural background 27 pulses / min Tube Capacitance (pf) 10 Life (pulses) at least 2*1010 Weight (grams) 10 / 9 SHIPPING The item(s) will be shipped by registered regular mail unless other arrangement has been set with the buyer. Due to severe delays for the Regular mail sent to USA and Canada, we recommend upgrade to Priority for all US and Canada clients, please contact us for details! Overseas delivery typically takes 1 to 3 weeks and about a week for Europe. NOTE: If you purchase several items I will combine the shipment to reduce shipment costs. PAYMENT 1. PayPal - www.paypal.com

Condition	New other (see details) : A new, unused item with absolutely no signs of wear. The item may be missing the original packaging, or in the original packaging but not sealed. The item may be a factory second or a new, unused item with defects. See the seller’s listing for full details and description of any imperfections.
Seller Notes	“NOS, Comes Straight from the State Military Suplus”