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X-ray Geissler Crookes Radio Box art
Dr. Hugh Hicks Fort Myers, FL. S.Slabyhoudek
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quote:Originally posted by M?nico Gonz?lez:I never have seen a real photo of one Open Spiral before, only some schematic draws on it.
quote:Originally posted by Bigglez:...and a Mystery tube that I hope someone can recognize for me
quote:Originally posted by tim:Hi Peter,Ok, these are the Amglo neon lamps that interest me! Here?s my observation?As M?nico suggested, this is a neon lamp that was made for indicator use. This same lamp was used in the amplifier circuits of some 1930s jukeboxes. The lamps were used as bass and treble indicators. This fact leads me to believe that the length of the glow discharge can be easily controlled, maybe by varying the current fed to the tube? I?m sure they found uses in other types of electrical equipment as well. As for when your mystery tube was made, if you?re curious, I would guess around 1937 based on the scraps of information I?ve gathered.If you come across any more please keep me in mind! I may have some interesting flash tubes to trade