Vol. 4, No. 5April 18, 2023July 19, 2024By Libby42View FullscreenOn the Cover The “Liberty Valve” as once sold by the Radio Apparatus Co. of Pottstown, PaIn this issueSome Historic British TubesMagnatron DC-112Early German Radar Transmitting TechnologyTCA Board Meeting, Aug. 27TCA Member Meeting, Aug. 27“Forbidden” Tube PinsBendix “Red Bank” Tubes
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