Sylvania 175w Metalarc BT28: Full power on 240v 50hz CWA.
Decided to give this lamp a good run on that Parmar 175w that I have for 240v 50hz.
Quite a nice lamp, give off quite a warm colour.

Sylvania 175w Metalarc BT28: Full power on 240v 50hz CWA.

Decided to give this lamp a good run on that Parmar 175w that I have for 240v 50hz.
Quite a nice lamp, give off quite a warm colour.

387A2025.jpg 387A2038.jpg 387A2060.JPG 387A2149.JPG 387A2176.JPG
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AngryHorse   [11 Feb, 2022 at 08:33 PM]
You can see the colour upgrade these must have had when they swapped them from MVs in the US?
FrontSideBus   [12 Feb, 2022 at 05:25 PM]
Yes, especially as they seemed to use clear MV quite heavily too long after coated lamps were introduced. Imagine going from a clear mercury lamp and then sticking one of these in!

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