Marvel Posted January 13, 2005 Share Posted January 13, 2005 Without being too technical, can someone explain some differences between these two tubes regarding power consumption? I know that the EL34 requires much more heater current: EL34 = 1.5 amps 6L6 = .9 amps What about the other current ratings. I had someone tell me that the 6L6 requires a beefier power supply than the EL34, but I can't figure out where they are getting their data. And I have looked at lots of data sheets trying to compare. Marvel Quote Link to comment Share on other sites More sharing options...
Colin Posted January 13, 2005 Share Posted January 13, 2005 less amps, but bigger power supply, I too don't get it! Quote Link to comment Share on other sites More sharing options...
Marvel Posted January 13, 2005 Author Share Posted January 13, 2005 Maybe it's the plate current rating? Someone will know the answer Quote Link to comment Share on other sites More sharing options...
dodger Posted January 13, 2005 Share Posted January 13, 2005 Plate current ratings, the fact that 6L6GC started as a metal with less power output and the 'C' is the 3rd generation. Trademark and the sonic abilities that manufacturer's were trying to achieve added again. The sheer size of the tube were some of the last additionals. I have Sylvania, RCA and GE spec sheets but can't up load because of the webtv. Any specific questions, please PM me, I'll try to send info. dodger Quote Link to comment Share on other sites More sharing options...
Marvel Posted January 13, 2005 Author Share Posted January 13, 2005 It was a specific question wasn't it? If you ignore the heater current ratings, does the 6L6GC require more current than an EL34, all else being equal (B+, design, etc.)? Quote Link to comment Share on other sites More sharing options...
dodger Posted January 13, 2005 Share Posted January 13, 2005 Sorry, the answer is yes, from all I have here. My apologies. I looked at the numbers, went back in my head to the 6L6 metal and why the differences came about. dodger Quote Link to comment Share on other sites More sharing options...
Marvel Posted January 13, 2005 Author Share Posted January 13, 2005 Thanks Win, Can you tell me what is higher and how much? I'm trying to get a handle on this. I know that many folks (and Dynaco themselves) have indicated that you can use a KT66 in place of the EL34 in an ST-70. I have also been told that I could use a 6L6GC, but that it might require more current. I am assuming on the B+. Marvel Quote Link to comment Share on other sites More sharing options...
dragonfyr Posted January 14, 2005 Share Posted January 14, 2005 Oh man, how much time do you have? I can dig up a wealth of design info on this, but the easiest thing might be to simply call Groove Tubes. They bought GE's original production machinery for the 6L6 about 3-4 years ago and they can go into LOTS of depth regarding it and the EL34/ 6CA7GE if you like. Quote Link to comment Share on other sites More sharing options...
thebes Posted January 14, 2005 Share Posted January 14, 2005 I'm not technical at all but I will say that I don't think not many people here know that Groove Tubes bought the manufcaturing equipment. Very cool. Thanks Dragon Quote Link to comment Share on other sites More sharing options...
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