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

US $590

Sofia, Bulgaria
May 31st

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SBM-20 / СБМ-20 HARD BETA and GAMMA GM DETECTOR TUBES Vintage Made in USSR during the 80's for the Soviet Military Needs Genuine Russian Military Surplus <> TESTED with real radiation sample <> Condition - NOS, Never Used, Comes straight from the Factory Box This auction is for 1 (one) piece per bid! GENERAL SPECIFICATIONS Parameters SBM-20 / SBM-20U 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 -60 to +70 WALL SPECIFICATIONS Parameters SBM-20 / SBM-20U Areal Density (mg/cm2) 40 Thickness (mm) 0.05 ELECTRICAL SPECIFICATIONS Parameters SBM-20 / SBM-20U Minimum Anode Resistor (meg ohm) 1.0 Recommended Anode Resistor (meg ohm) circuit diagram 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 SHIPPING The item(s) will be shipped by: ECONOMY mail ( without tracking ) or STANDART mail ( registered post with tracking ), it depends on what service you will choose during the checkout. Due to severe delays for the ECONOMY mail sent to USA and Canada we recommend using STANDART with tracking to those countries! We reserve our right to offer only STANDART and/or better service to selected listings and countries. ETA: Economy ( Europe 10-20 business days / Rest of the world 15-45 business days ) Standart ( Europe 7 - 10 business days / Rest of the world 10-15 business days) NOTE: If you purchase several items we will combine the shipment to reduce shipment costs. Just request us for total, when you finish shopping and before you complete checkout. PAYMENT1. PayPal - www.paypal.com TAKE ADVANTAGE!PRICE MATCH! If you find the same item/s anywhere cheaper on eBay under the same conditions, drop us a line and we will match the price for you giving you even better deal! ANY QUESTIONS?Contact us! We are happy to talk to you! We are now offering LIVE SUPPORT too! You can easily reach us (10:00 - 16:00h +2GMT during business days) from the link at the bottom of this page or just leave a message and we will get back to you ASAP.