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Radio Valves

PM4DX Azide Triode

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Detector triode with 4 volt, 100 mA filament. Maximum anode voltage 150 V, grid bias -6 V, mu 15, ra 7.5 kOhms. Cost 14/- in 1931, equivalent to £109 today! No longer made by 1934.

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© Andy Cowley, 2005-2012     Home

This page last modified by AJC on Monday, 29-Mar-2010