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Tungsram 45w SO/H Lamp

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Album name:Low Pressure Sodium
Filesize:1341 KiB
Date added:Feb 25, 2013
Dimensions:1600 x 1200 pixels
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Tom   [Feb 26, 2013 at 11:24 AM]
First Tungsram low pressure sodium I've seen! An old SO/H even more so!! Amazing find! I wonder if this was made in Hungary or did they source it in? Protective cap for the dewar seal off tip suggests maybe BTH Mazda? Can we have a close up of the etch please John?
Dez   [Feb 26, 2013 at 02:01 PM]
this screams mazda to me I think tungsram never made SO/H lamps only GEC Philips BLI(BTH/AEI) and the USSR made SO/H lamps
SuperSix   [Feb 26, 2013 at 07:30 PM]
Wow! What are rarity! Surprised
Linear_SLI   [Feb 27, 2013 at 07:34 AM]
Like how the 45s were a similar size to the 18s of today. Very Happy
James   [Mar 11, 2013 at 10:23 PM]
Indeed Tungsram did not make LPS, and since back at this time both they and BTH Mazda were controlled by GE of America, it's perhaps logical that BTH supplied them. This lamp is a rather nice example with discharge tube made from borosilicate hard glass, instead of the more common soft glass.

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