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-   -   Help with some tube ID (http://www.diyaudio.com/forums/tubes-valves/213143-help-some-tube-id.html)

Scrounger 23rd May 2012 12:57 AM

Help with some tube ID
 
Hey Guys! A little help with some Vacuum Tube identification please. I some tubes I have never seen before. The first was made in West Germany, but I would like to know by who. The second tube has fours seams and gold pins and the third is a more modern tube.
http://img.auctiva.com/imgdata/1/5/9...75557360_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557386_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557422_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557463_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557499_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557539_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557566_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557597_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557627_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557660_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557918_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557952_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75557982_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75558024_o.jpghttp://img.auctiva.com/imgdata/1/5/9...75558120_o.jpg

DF96 23rd May 2012 08:59 AM

The numbered metal tags inside the second one are often a marker for Tungsram Hungary.

No idea about the first or third one, except to say that West Germany on the outside can sometimes mean East Germany on the inside! Glass seams on the top are a sign of Philips manufacturing technique, but not necessarily always in a Philips-owned factory.

The first one has shiny pins with a sharp end, and bright red pin seals - usually a sign of Russian or eastern bloc manufacture. Could be RFT?

hidnplayr 23rd May 2012 09:53 AM

The first one looks like a 6922 to me

DF96 23rd May 2012 10:13 AM

It says it is a 6922 (second photo).


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