Air-Cooled Hot Cathode Tubes

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Early “Victor” Coolidge Tube	“AEG” Coolidge Tube (1915)	Siemens-Reineger-Veifa Therapy Tube
“4UD” General Electric Therapy Tube	“Okco” Tube, 1920’s	Spherical Hoooded Anode Coolidge Tube
“Media” CHF Müller Line Focus Tube	Westinghouse Coolidge Tube	Early “Media-Metalix” by Muller-Philips, late 20’s
Philips “Metalix”, Late 1930’s (England)	Tubix” Line Focus Tube	G.E. XP-4.5
Philips “Metalix”, ( U.S.A. )	Machlett “CYR” Tube	Eureka 6-100 P Tube
Philips “Metalix” ( U.S.A. )	1919 Coolidge Dental Tube	G.E. XPD Dental Tube
	Early “Adrian” Shoe-Fitting Device Coolidge Tube

Suggested reading : Coolidge X-ray Tubes by Dr. Paul Frame, Oak Ridge Associated Universities.

www.orau.org/PTP/collection/xraytubescoolidge/coolidgeinformation.htm

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