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Who can explain the source of this Siemens 12AU7
Who can explain the source of this Siemens 12AU7
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Old 17th November 2006, 02:40 PM   #11
kevinkr is offline kevinkr  United States
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Who can explain the source of this Siemens 12AU7
They are actually building a new site, did not post a link to it because there is nothing more than a new logo there at the moment. The manufacturer's site hasn't been updated in a long time for sure, however all of the listed types are available.

My understanding is that there is new production, I have talked to several wholesalers here in the USA who have informed me that that is the case.

Also I have an acquiantance who has been the plant in Nis since the end of the war and he indicated it was quite intact.

Story of other divisions rings true and would be similar to experiences at the old Tesla facility as well as Svetlana SPB in St. Petersburg.. All former shadows of the state run concerns they once were.

IMO EI quality was never anything to brag about, my experience with power tubes like the KT90 was not wonderful. Their 12AX7 seemed comparatively short lived compared to nos USA and Western European types.
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Old 18th November 2006, 06:20 AM   #12
planet10 is offline planet10  Canada
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Who can explain the source of this Siemens 12AU7
Quote:
Originally posted by kevinkr
tube though never saw the inside of an Amperex factory.
My understanding is that there never was an Amperex factory... that they were mostly rebranded tubes from Philips factories.

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Old 18th November 2006, 01:16 PM   #13
Eli Duttman is offline Eli Duttman  United States
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My understanding is that there never was an Amperex factory.
Amperex was an American company with mfg. facilities in Hicksville (LI), NY. Philips acquired Amperex to obtain provider status to the U.S. military. Once they owned the "mark", Philips was pretty much free to do as they pleased.

FWIW, nice 7308s were produced in the Hicksville plant.
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Old 19th November 2006, 02:34 PM   #14
kevinkr is offline kevinkr  United States
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Who can explain the source of this Siemens 12AU7
Amperex built very good tubes at the Hicksville, NY plant, prior to the Philips acquisition and the "counterfeits" I bought definitely were not Amperex or any of the Philips sister companies. I suspect they were nothing more than relabeled Sylvania mil spec types made in the late 1980's just before the plant shut down. IMO nothing special and not worth anything close to what I paid for them. I was very disappointed to say the least..

Amperex tubes whether US made or sourced from other Philips subsidiaries always had a what I think is a well deserved reputation for superlative quality. Early on in my career their 12AU7A (Dutch or German made) was just about the only one I would use, other than a French Mazda.
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