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- Mullard–Philips Tube Designation from Wikipedia, the Free Encyclopedia
- Useful Formulas and Equations
- Introduction to Electron Tubes
- Analysis and Restoration of a 1960S Era Vacuum Tube AM-FM Reflex Receiver
- ?Ea-6-F (2-4%. 4. INVENTOR. Patented Dec
- Testing Child-Langmuir (C-L) Law in Umer E-Gun
- Vacuum Tube (Edited from Wikipedia)
- How Vacuum Tubes Work by Eric Barbour
- The Vacuum Tube – an Introduction Bob Devance, K5CRX
- 259A Vacuum Tube Is a Four-Element, Screen-Grid Tube Having an Indirectly Heated Cathode Which Permits Operation of the Heater Element Directly on Alternating Current
- Jan. 17, 1961 R. C. A. ELAND 2,968,742 HIGH EFFICIENCY TRIODE WACUUM TUBE Filed July 25, 1958 3
- Grid-Controlled Power Tubes in Particle-Accelerator Applications
- Types of Vacuum Tubes
- The End of Thermionic Valves?
- Transmitter Tubes
- Department of Electronics L.S College, Muzaffarpur Tetrode Vacuum Tube
- The Development of Tubes with Special I
- 246A Vacuum Tube Is a Four-Element, Screen-Grid, Tube Having a filamentary Type Cathode