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Old 13-09-17, 09:07 PM   #1
wolseley phill
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Default "Alpha" Petter-Light

Flicking through a 1936 copy of "The Electrical Engineer", I spotted an advert for a Petter Light set in the adds.

The set is listed as an "Alpha Petter Light"- what does the Alpha refer to, the smallest model perhaps? Not a term I have seen applied to these units before.

Nice price too, if only!

IMGA0913 by Phillip Sheppard, on Flickr

Phill.
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Old 13-09-17, 10:22 PM   #2
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Yep, the smallest ones were called alpha.
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Old 13-09-17, 10:39 PM   #3
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Thanks, not something I'd come across.

Phill.
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Old 13-09-17, 11:16 PM   #4
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Quote:
Originally Posted by wolseley phill View Post
Thanks, not something I'd come across.

Phill.
Neither have I, not to mention it making little sense.
Alpha is usually the leader of the pack.

Neil.
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Old 13-09-17, 11:28 PM   #5
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Suppose in a way it is the leader as in the first in the range?

Couple of pics of catalogue pages with the Alpha set.
Attached Images
File Type: jpg Alpha 1.jpg (134.4 KB, 50 views)
File Type: jpg Alpha 2.jpg (61.4 KB, 30 views)
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Old 14-09-17, 09:20 AM   #6
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Did it get them higher up alphabetical listings of plant - like the ubiquitous "Acme"?

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Old 14-09-17, 01:08 PM   #7
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Alpha = greek letter A .
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Old 14-09-17, 02:35 PM   #8
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I was thumbing though a mag the other day, 1940, ads for a Lister portable compressor and a Purer aqua water purification setup run on a Jap engine.
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Old 15-09-17, 08:11 AM   #9
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Default Alpha-Petter

Hi Phill,
David Edgington in his book on the Petter M type engine says that the Alpha-Petter lighting plant was introduced in 1924 and was a slightly improved version of the 1922 set. The engine was a regular 1.5hp hopper -cooled with belt drive to the dynamo. Both items being mounted on a common base with ALPHA-PETTER case in.
The switchboard was a modified version of the regular switchboard and incorporated an automatic cut-in and cut-out, a shunt regulator and amp meter. Petter Limited claimed to have improved the storage battery which was of an enclosed type with sealed glass jars.
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