Russian Geiger Counter SBM-20 Lot of 10 NEW

Russian Geiger Counter SBM-20 Lot of 10 NEW


$130.00

11 items in stock

This item has been sold:
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Russian Geiger TUBE Counter SBM-20

Lot of 10 

New old stock.

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
 
 
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

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 Payment Details

PAYMENT IN USA and GERMANY

I accept payments:

PayPal, Moneybookers

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Shipping Details

Shipping from Ukraine via Airmail with tracking number

Insurance is included to shipping cost

We offer combined shipping discounts

Shipping time
Europe 10-12 days
Germany, Italy 14-18 days
USA, Canada 12-15 days
Asia, South America 14-20 days
Australia, New Zeland 20-24 days
Africa, Central America 24-34 days

 

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