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On Mon, 05 Jan 2009 09:54:36 -0500, Scott Dorsey wrote:
Richard Knoppow wrote: The 50L6 is NOT a relative of the 6L6. It is a pentode power tube with 10 watts of plate dissipation compared to 19 watts for a 6L6. The 6L6 puts out about 2.5 times the power when operating as a single tube Class-1A aplifier. Other characteristics are also different. Yeesh! That is not good at all! That is a very misleading number in that case. What about the 25L6 then? I have pitched a lot of 25L6 tubes over the years because they showed low transconductance compared with a 6L6. --scott AFAIK the numbering -- other than the filament voltage, and other than suffix letters -- is almost completely arbitrary; any similarities in functions between similarly numbered tubes in a marketing, rather than an engineering, decision. Even then, as Richard pointed out, the filament voltage sometimes isn't, and a 'G' variant of a metal tube often has different interelectrode capacitances than the parent tube or the 'GT' variant. -- Tim Wescott Control systems and communications consulting http://www.wescottdesign.com Need to learn how to apply control theory in your embedded system? "Applied Control Theory for Embedded Systems" by Tim Wescott Elsevier/Newnes, http://www.wescottdesign.com/actfes/actfes.html |
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