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Old 8th July 2003, 01:54 AM   #1
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Default Tube manufacturer Trivia Question

Who's tubes are these? I'm pretty sure they are East German, but...

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Old 8th July 2003, 02:12 AM   #2
SY is offline SY  United States
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Ah, the small plate 12AX7s! They worked quite well in my old Berning preamp prototype. I've gotten identical tubes, and I mean identical. marked Germany, Hungary, Poland, and Holland.

Haven't seen these in quite a few years; the last ones I got were from Radio Shack.
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Old 8th July 2003, 02:19 AM   #3
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Hey-Hey!!!,
I had some 12AU7 just like that. Labeled Amperex, made in Great Britian. No etched codes though , so I figured caution was in order. Since I have nothing except some Tek 'scoopes that uses the AU7, I gave most ov them away. Nice to know where they came from.
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Douglas
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Old 8th July 2003, 05:24 AM   #4
SHiFTY is offline SHiFTY  New Zealand
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The angled getter flash reminds me of the matsushita tubes... they could be japanese?
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Old 8th July 2003, 07:38 AM   #5
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I am almost 100% sure these were maid by RFT in East Germany. Thorsten will know. I have few and they sound terrible.

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Old 8th July 2003, 08:23 AM   #6
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I'm pretty sure they are not made in Japan (due to the shape pins) Should be either East Germany or Hungary.
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Old 8th July 2003, 09:14 AM   #7
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Old 8th July 2003, 03:31 PM   #8
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its not russian, but it is definitely made in a warsaw pact country.

east germany is a good possibility.
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Old 8th July 2003, 11:24 PM   #9
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Hi,

RFT. Ost Deutschland.

Tchuess,
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Old 8th July 2003, 11:29 PM   #10
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Dave

Just send them all to me. I'm not too picky and I will find a use for them.



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