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<blockquote data-quote="JimJ" data-source="post: 3689346" data-attributes="member: 555251"><p>25% is the theoretical maximum. One of these days I'll clamp the monos and see what they're drawing from the wall...no idea as of now.</p><p></p><p>The largest Class A (albeit A2) amp design I know of is the 833A triode running in single-ended operation...which I've seen anywhere from 150 to 220 watts depending on plate current/voltage and how much THD was tolerated.</p><p></p><p><a href="http://www.tubelab.com/833SE.htm" target="_blank">http://www.tubelab.com/833SE.htm</a></p><p></p><p>Basically the same concept behind the Japanese WAVAC HE-833 amp that sells for $350,000.</p></blockquote><p></p>
[QUOTE="JimJ, post: 3689346, member: 555251"] 25% is the theoretical maximum. One of these days I'll clamp the monos and see what they're drawing from the wall...no idea as of now. The largest Class A (albeit A2) amp design I know of is the 833A triode running in single-ended operation...which I've seen anywhere from 150 to 220 watts depending on plate current/voltage and how much THD was tolerated. [URL="http://www.tubelab.com/833SE.htm"]http://www.tubelab.com/833SE.htm[/URL] Basically the same concept behind the Japanese WAVAC HE-833 amp that sells for $350,000. [/QUOTE]
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