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Old 20th Nov 2017, 12:59 pm   #7
emeritus
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Join Date: Jan 2012
Location: Brentwood, Essex, UK.
Posts: 5,316
Default Re: "Foreign" marked B9A valves

The same thing used to happen in lighting in the 1960's. One of my fellow students who had worked for one large company (I forget which) told me that his company had an arrangement with another major company. His company made only fluorescent tubes, and the other company made only GLS bulbs. They changed the stamps according to which company the products were destined for, but other than their markings, the products were identical.

Last edited by emeritus; 20th Nov 2017 at 1:04 pm.
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