In this issue

• Electronic Starter Kit, Shockproof A review of early multi-purpose radio kits.
• Wierd Tube of the Month: The Quadratron The Baker-Smith Company adds an additional plate to act as a control grid.
• The “Reprocessing” Tube Racket The selling of re-processed tubes to the public.
• Grumping About Tubes Philco Serviceman, June, 1954.
• The Sylvania “Rocket” Tube A line of super-high frequency tubes.
• Design Principals of Planar Triodes Sylvania data on planar triodes.
• China Appoints Arctarus Radio Press from about 1933 note the contract with Arctarus and China.
• Thermionic Age in Brazil – Continued 2 Continued overview of receiving tubes in Brazil.
• 55-Watt Amplifier with 6L6s RCA Application Note No. 68.