Hey, guess what: was browsing through some other stuff (looking for 813
tube circuits, akshooly) when I ran across this circuit:

http://members.aol.com/sbench/1060amp.htm

Another stereo amp that uses a common xfmr for both channels, with a
"helper" transformer, just like the one we discussed extensively above.
With an explanation of how the damned thing works, no less.


--
Just as McDonald's is where you go when you're hungry but don't really
care about the quality of your food, Wikipedia is where you go when
you're curious but don't really care about the quality of your knowledge.

- Matthew White's WikiWatch (http://users.erols.com/mwhite28/wikiwoo.htm)

David Nebenzahl wrote in news:454eb373$0$4981
:

Hey, guess what: was browsing through some other stuff (looking for 813
tube circuits, akshooly) when I ran across this circuit:

http://members.aol.com/sbench/1060amp.htm

Another stereo amp that uses a common xfmr for both channels, with a
"helper" transformer, just like the one we discussed extensively above.
With an explanation of how the damned thing works, no less.

And Spice modelling of the circuit's operation, followed by circuit
modification to improve it, with plots of channel separation and harmonic
distortion which show that it can operate quite well!

"David Nebenzahl" wrote in message
.com...
Hey, guess what: was browsing through some other stuff (looking for 813
tube circuits, akshooly) when I ran across this circuit:

http://members.aol.com/sbench/1060amp.htm

Another stereo amp that uses a common xfmr for both channels, with a
"helper" transformer, just like the one we discussed extensively above.
With an explanation of how the damned thing works, no less.

This one actually works differently.

David Nebenzahl wrote:

Hey, guess what: was browsing through some other stuff (looking for
813 tube circuits, akshooly) when I ran across this circuit:

http://members.aol.com/sbench/1060amp.htm

Another stereo amp that uses a common xfmr for both channels, with a
"helper" transformer, just like the one we discussed extensively
above. With an explanation of how the damned thing works, no less.


Did you find any 813 tube amps ?

--
Baron:

Baron spake thus:

David Nebenzahl wrote:

Hey, guess what: was browsing through some other stuff (looking for
813 tube circuits, akshooly) when I ran across this circuit:

http://members.aol.com/sbench/1060amp.htm

Another stereo amp that uses a common xfmr for both channels, with a
"helper" transformer, just like the one we discussed extensively
above. With an explanation of how the damned thing works, no less.

Did you find any 813 tube amps ?

Yes; that same person has a bunch of stuff on them, like
http://members.aol.com/analogengineer/813mat.htm.


--
Just as McDonald's is where you go when you're hungry but don't really
care about the quality of your food, Wikipedia is where you go when
you're curious but don't really care about the quality of your knowledge.

- Matthew White's WikiWatch (http://users.erols.com/mwhite28/wikiwoo.htm)

David Nebenzahl wrote:

Baron spake thus:

David Nebenzahl wrote:

Hey, guess what: was browsing through some other stuff (looking for
813 tube circuits, akshooly) when I ran across this circuit:

http://members.aol.com/sbench/1060amp.htm

Another stereo amp that uses a common xfmr for both channels, with a
"helper" transformer, just like the one we discussed extensively
above. With an explanation of how the damned thing works, no less.

Did you find any 813 tube amps ?

Yes; that same person has a bunch of stuff on them, like
http://members.aol.com/analogengineer/813mat.htm.


Thanks. I'll take a gander.
--
Baron: