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	Vacuum Tubes \| Principles of Radio \| 1943 \| Educational Film (Electrical Superintendent) View
	Vacuum Tubes (1943) (A/V Geeks 16mm Films) View
	Vacuum Tubes 1943 Educational Documentary WDTVLIVE42 - The Best Documentary Ever (Friedrich Moore) View
	Vacuum Tubes - The Triode u0026 The Multipurpose Tubes - 1943 US Army Training Film (Electrical Superintendent) View
	Electronics Vacuum Tubes Valves - Triode u0026 Multipurpose Tubes - 1943 US Army Training Film TF1 471 (NJARC (NJ Antique Radio Club)) View
	Vacuum Tubes Valves Westinghouse WW2 Electronics at Work (Tubes Valves) View
	1943-08-10: The Cathode Ray Tube How It Works (Tom Owens UAP) View
	Electronics At Work (1943) Part 1.mov (myfenderchamp) View
	Electronics At Work (1943) Part 2.mov (myfenderchamp) View
	The Vacuum Tube (Salvo Morina) View