SO/H (obsolete) sodium vapour lamp @tuopeeks

SO/H (obsolete) sodium vapour lamp @tuopeeks

Uploaded January 2012 | Updated September 2026, 3 weeks ago

Construction of the now obsolete SO/H sodium lamp. This lamp was available from the 1950s and was phased out during the 1960's by the SOI/H and then the more efficient SOX/H Lamps

more : tuopeek.com/old_lamps

SO/H (obsolete) sodium vapour lamp

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SO/H (obsolete) sodium vapour lamp