Gilbert Posted March 5, 2015 Share Posted March 5, 2015 What information do they offer about the tube? I've also found them on certain Amperex tubes, including Bugle Boys'. Quote Link to comment Share on other sites More sharing options...
jcmusic Posted March 5, 2015 Share Posted March 5, 2015 I can't remember everything since its been a long time since I have needed to think about them. The etchings give info about which factory and the date of manufacturing. Quote Link to comment Share on other sites More sharing options...
toolz Posted March 5, 2015 Share Posted March 5, 2015 Gil, I was on a website that gave information on the etchings but at the moment I can't remember which site. If I come across it I will post the link on this thread. Quote Link to comment Share on other sites More sharing options...
toolz Posted March 5, 2015 Share Posted March 5, 2015 Gil, Here you go http://www.audiotubes.com/mullcode.htm. 1 Quote Link to comment Share on other sites More sharing options...
Gilbert Posted March 5, 2015 Author Share Posted March 5, 2015 Gil, Here you go http://www.audiotubes.com/mullcode.htm. Perfect, thank you. Quote Link to comment Share on other sites More sharing options...
toolz Posted March 5, 2015 Share Posted March 5, 2015 YW Quote Link to comment Share on other sites More sharing options...
seti Posted March 5, 2015 Share Posted March 5, 2015 Gil, Here you go http://www.audiotubes.com/mullcode.htm. My favorite tube store for many years. Quote Link to comment Share on other sites More sharing options...
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