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This is modern China-made J614γ Geiger Muller tube, measures 7.5mm diameter and 55mm long  (0.313” x 2.2”).  It is very sensitive to Gamma and Beta radiation, with an average background reading of 7 to 12CPM. The small size makes it extremely very well suited for miniaturized portable Geiger counters.

J614Y

SKU: BG-J614
$44.95Price
    • Cathode Material: Stainless Steel
    • Anode Material: Tungsten
    • Construction: Glass Envelope
    • Max. Length: 55mm (2.2”)
    • Maximum Diameter:  7.5mm (0.313”)
    • Recommended Anode Resistor: 5m
    • Starting Voltage: 330v
    • Recommended Operating Voltage: 400v
    • Operating Voltage Range: 380v-460v
    • Sensitivity: Gamma, Beta, and  X-Rays
    • Lifetime: 1 x 1010 (10 billion /1902 years at background CPM)
    • Background CPM: 10 (Los Angeles/Southern California area)
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