Various articles about a 6T9 transmitter

http://www.hanssummers.com/cwtx/cwtx1.html 

http://www.oocities.org/dre_cb/ecl82-transmitter.htm 

http://f6hcc.free.fr/tx1lampe.htm 

http://pa3am.com/index.php?option=com_content&view=article&id=2&Itemid=3

http://homepage.ntlworld.com/g4kki.bill/one_valve_transmitter_for_80mtrs1.htm

http://www.qsl.net/kd6cc/6t9.htm

http://forums.qrz.com/showthread.php?333283-QRP-novice-40-amp-80-M-transmitter-and-tuner

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