7x Sbm-20 Radiation Geiger Counter Tube New Ci-3bg Pcs 7

US $77.00

Kharkov, Kharkov, Ukraine
Feb 28th

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Russian GEIGER-MULLER TUBES COUNTER " SBM-20 " Qty: of 7 pcs These tubes are base of Russian and Ukrainian dosimeters. The highest quality and exactness of measuring! Basic spare parts tubes are never used before. Russian Military equipment. Guaranteed all tubes testing and excellent working condition . The bid is for 7 NEW, OLD STOCK tubes SBM-20 GEIGER-MULLER TUBE COUNTER . See actual pictures Parameters and characteristics . 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) 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 Check out my other items ! SHIPPING/HANDING Item location in Ukraine. Buyer pays fixed $8 Shipping&Handing costs for any country . This item will be shipped to you from Europe (Ukraine ) via airmail , immediately in 1 business day after payment , guaranteed is fully received and will be arriving within 7-14 business day to your destination . PAYMENT I accept the following payment methods : only PayPal. RETURN POLICY 30 days guarantee We guarantee you complete satisfaction with all my products. If you receive an item you ordered is received damaged or defective, we will refund you the price you paid for it or replace it with identical one. We accept returns to Ukraine. Item for returning must have the original tags and packing, otherwise it won't be accepted. If you have any questions to ask me and I will get back to you as soon as possible. Good Luck!

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Model	sbm-20
Country/Region of Manufacture	Russian Federation
Type	geiger counter tube