Amperex Models 100NB and 200NB End Window GM Tubes (ca. 1960s) |
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| There is nothing particularly unique about these end window GM tubes manufactured by Amperex Electronic Corporation. These particular examples probably date from the 1960s (most likely, the serial number 67-32 refers to 1967), but to look at them, they could just as easily have been manufactured yesterday. I believe that the N in the model number refers to the use of a neon fill gas and that the B refers to the four pin base. |
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Size: 4.344” long and 1.375” diameter Window: 1.093" effective diameter Model 100 NB 3-4 mg/cm2 (beta, gamma) Model 200 NB 1.4-2.0 mg/cm2 (alpha, beta, gamma) Operating Voltage: 900 volts Dead Time: ca. 200 usec Cathode: plastic coated stainless steel Gas: Neon, halogen quenched Base: four prong Donated by Ron Kathren Reference Ron Kathren personal communication Amperex Nuclear Products catalog of radiation tubes. 1981. |
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