In this issue

• Readers Report
• Some Baird – Atomic Special Tubes
• Book Review: GEMA – Birthplace of German Radar
• Some GEMA Tubes
• Invasion of the Schlockers
• Notes on Sperry Microwave Tubes
• The Standard or UX Base
• More on Getters
• DeForest Tries a Telephone Repeater
• RCA and IBM: A Field Contact