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Please look at this 12AU7,long ribbed plate,square getter,wrinckle glass,round should,no code.
Which plant made it?TFK,or Siemens?Perhaps a test production.
thanks!
http://www.diybuy.net/viewthread.php?tid=60419&extra=&highlight=ecc&page=1
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Topic - 12AU7 - chm@xedz.com 18:38:06 04/19/07 (2)