In this issue

• Weird Tube of the Month: The Solenoid Tube The last product of Otis Moorhead.
• KR Introduces the KT88 KR Audio Electronics from Prague announces the KR KT-88.
• A Bit of Raytheon History Some history of Raytheon and their cold-cathode rectifiers.
• The CeCo “Citation” Tube CeCo tries to improve their profits by producing a “Super-Quality” tube.
• Production Figures for Signal Corps Gear, 1940-45 Production numbers and nomenclature for Signal Corps electronics equipment.
• Speed “Triple-Twin” Cable Radio Tube Corp. produces a tube with “triple the output of the 245”.
• Radio Products Co. Radio Age, July 1990.
• The CIA Reports on Soviet Tubes, 1954 Declassified report from 1954 made available in 2011.