Talk:EL34

e34L is actually a higher power version. I will check my references and try to strighten that up over the weekend..
 * guess this is manufacturer-dependant ... the JJ specifications contain the same numbers including the power ratings but except for the grid 1 voltage ... --Kavol 20:20, 15 June 2006 (UTC)

Yes, I have still not found the "actual" diference, but I am going to change the article to say it is a related simalar type.. (And throw in a few more references while I am here. cmacd 14:12, 18 June 2006 (UTC)


 * In the Philips/Mullard scheme, putting the number between the first two letters (E34L, E88CC and so forth) indicates a "special quality" version. There's no hard rule what "special quality" exactly means, it may be a ruggedized version, have tighter tolerances, longer life or whatever. Now that valves are almost exclusively used in consumer equipment whose users tend to attribute a variety of magical properties to valves, it may be a mere marketing ploy. Rocknrollsuicide (talk) 03:17, 29 November 2012 (UTC)

Needs explanation or reference for "greater distortion at lower levels". It was, after all, the pre-eminent power tube in hi-fi amps when they all had tubes. Ampwright 00:08, 1 July 2007 (UTC)


 * I didn't understand this comment either. At first glance it appears to be nonsense, but I guess guitar amp people may use these terms and concepts differently than mainstream valve audio people. I have added a citation request. --Ef80 (talk) 13:33, 8 October 2009 (UTC)

The term 'filament' normally refers to the directly-heated cathodes used in battery-powered valves. The thing that heats an indirectly-heated cathode is normally referred to as a 'heater'. Dulciana 2008-02-14

Circular link?
There's a link at the bottom to 6CA7. . . which is just a redirect to this page. Shalom S. (talk) 16:47, 29 November 2010 (UTC)