In this issue

• Arcturus – The Star That Burned Out A history of the Arcturus Radio Tube Company famous for their “blue” tubes.
• Oldie Press release: The Triad T-10S Triad Manufacturing Company produces a high power varient of the 210.
• Fending Off Sylvania on the 6J4 RCA lobies the military to use their 6J4 and not the more expensive Sylvania 7245.
• GE/RCA and Early Pentodes The GE/RCA attempt to produce their first pentode tube.
• So You Want A New Transceiver? N2TKX attempts to translate equipment makers claims.
• Fixing the 5R4 RCA modifies their 5R4 rectifier to handle electrolysis problems.
• Two Who Made It Possible! The Cornell-Dubilier Capacitor of December 1955.
• A new Tube in Germany From Radio Engineering, October, 1930 a gridless tube that uses its metalic coating for control.
• Wierd Tube of the Month: Big Lee’s Transistor Lee De Forest patents a transistor.