I have a couple of these, Heavy buggers.the rh one is an old griffin one with round plugs for the tube part. if you have the tubes you must have the housing and transformer unless someone threw them away.
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They are semi retired, as we have a slightly more modern one and only use it as a demo, rater than a class prac.
I have a vague memory of using a sodium lamp and a spectrometer as part of the "A" level practical exam.. circa 1990?