OSRAM HQL 50W

My first contribution should be a small lamp.
OSRAM HQL 50W with code: mcX , made in Berlin-Charlottenburg in April 1962.

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Filename:	OSRAM_HQL_50W_mcX_a.jpg
Album name:	Olav / mv lamps and gear
Filesize:	437 KiB
Date added:	10 Nov, 2021
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Comment 1 to 6 of 6

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Andy

[10 Nov, 2021 at 08:55 PM]

I think this must be one of the oldest 50W mercury lamps I have seen! I assume this is an orthophosphate coating?

Danny

[10 Nov, 2021 at 09:07 PM]

1962! Amazing!

Olav

[10 Nov, 2021 at 09:08 PM]

Andy, thats a perfect question to James. I have no informations about the phosphor in this time. Orthophosphate will be used in this time.

FrontSideBus

[11 Nov, 2021 at 05:01 PM]

very nice oldie!

AngryHorse

[11 Nov, 2021 at 09:14 PM]

Nice, thatâ€™s maybe the oldest 50 weâ€™ve got on here!

Olav

[12 Nov, 2021 at 01:18 AM]

Thanks for all comments,

here is the second picture. The green ring on the socket is good visible. That was typical in this time.

Regards

Olav

Comment 1 to 6 of 6

Page: 1