| Looking for a few extra watts for your Pis? [message #68576] |
Sat, 16 July 2011 15:15  |
Bill Epstein
Messages: 1088
Registered: May 2009
Location: Smoky Mts. USA
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Illuminati (2nd Degree) |
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I'm sure I've posted before about George Andersons Tubelab Simple SE but I re-tubed it today and it's just killer! No, it was killer, now it's from another Planet. And a 12 year old could build it. Like me.
When first built last year I tried some pre-Sovtek Svetlana 6550s and thought they were kinda lean and nasty. Went with my cheap-ass fav E-H "fat-bottle" 6CA7s. One of the E-Hs fell and was damaged (12 years old,right?) so I tried the 6550s again. What a difference a buncha time on the trannies and other parts made. Or my ears aging. Or whatever.
Anyway, with an Allied power transformer and Transcendar OPTs you can buikld it for about $400 and have 5 to 7 single-ended pentode-run-in-triode watts. Or go with Ultralinear, more watts.
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| Re: Looking for a few extra watts for your Pis? [message #68661 is a reply to message #68660] |
Wed, 20 July 2011 08:31  |
SteveBrown
Messages: 330
Registered: May 2009
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Grand Master |
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I don't disagree, Bill. One of my favorite amps I've built ended up with Ron. It was very much like the simple SE. They were mono blocks, used a 417a driver and any variety of "standard" output tubes like EL34's, 6550's etc. Had James OPTs and one of them really spendy V Caps as the coupling cap. I think those caps cost more than the OPTs! Anyway,very nice sounding amps.
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