Cary 805 vs v12

Did some search on this Cary 805 with an 805 output tube, and yes it was used at first like I thought, but I think due to hard to find NOS only supply of the 805 tube at the time, it got changed to the 211 because they were being made new, and then in 97 to the 845.

Quote:"The original Cary CAD-805 was named after its output tube: the 805. The amp had a 6SL7 input tube (which has remained constant through various design changes) and an EL34 driver tube. The 805 output tube was soon switched to a 211."Quote:

Cheers George

George, I am not disputing the fact that the Cary was original designed around the 805 tube, but it never went into retail production with the 805 tube. The first retail version was offered with the 211 tube. Perhaps you saw the prototype? In any event, it's a great amp.

There's one pair in Australia with 805 tubes, maybe it was modded to take them? owned by Robert ? the guy who bought the Eichmann cable and bullet plugs rights from Eichmann then on sold it. Maybe it was the prototype who knows?

Cheers George

More info delving into the history of this fine? tube amp, I found this quote from Sam Tellig this time when he talked to Dennis Had of Cary.

"The original CAD-805 had four tubes—three in the signal path. Starting as the signal came in, a single 6SL7 dual-triode input tube provided voltage gain. This was coupled to the control grid of an EL34 pentode tube wired as a triode. The EL34 produced about 4W of audio power to drive the control grid of the 805 or 211 via an interstage transformer"

Chees George

After all the hype back then on these, I decided to make my own pair of monoblocks way back then, at back breaking 35kg each even with aluminium chassis, also feedback adjustable, and very high quality transformers, power, output, chokes, and interstage.

They consisted of 13d3 Birmar input tube (same Audionote used in their top preamp) then a 12BH7 strapped RCA blackplate driving a Sylvania 300B which then drove the interstage transformer which drove the 805 RCA black plate tube.
These just drove the ESL section of the Martin Logan Monolith III's It was nice even good, they lasted about 6mths before I sold them. I may still have the circuit diagram on an old backup HD somewhere if anyone wants to make a pair, mind you these are lethal!!!!!

Cheers George