Hi RATs!
The amp design in question has one happy listener. I don't know if he
is a Supreme Sonic Purist or anything - he posts about amps he builds
that he likes
The signal path is an oversimplification of the system to help
relatively unschooled people fix up really dead amps.
And there are stickers and knick-knacks you can put on or around stuff
to fix up really dead aural imaginations.
The IXYS is a sub-$2. part that makes the circuit sound better. For
one guy. I like to try stuff that made someone happy. I can't remember
what every circuit sounded like, but, I can always enjoy trying
another one, even if it sometimes takes a year or three ... so many
lovely ladies of the mind, so little time.
The endless bickering on this Newsgroup has many functions, and many
posters have none, apparently, only a great need to give voice to
their hostilities.
It is OK, no one who wants to try strange and exotic stuff and listen
cares what anybody else needs ... Well, unless she insists on getting
her dreams to come true right now
My wife has been very sick many
more years than me, her dreams are of cigarettes and yogurt. Sigh.
So, is using a 6J6 with the signal going in on one grid and the other
grid grounded really what a long tail pair is? The signals on the
plates are both pumped up and out of phase. Wow!
One of the great things about dragging one's unschooled brain through
engineering texts is the wonderful ability of technical authors to
hide so much useful information.
It has kept me busy for years, looking for someone who can simply
describe a circuit through which they enjoy listening to music.
It happens, but, there are so many people eagar to share their command
of the latest techno-gibberish, it ain't often. And even I often get
enthusiastic talking about what fun changing a part was ...
If any of you have not built a single tube amp, get busy. What you
hear when there is nothing else there will be a wonderful learning
experience
SV-83 and 417A each do quite well, alone
And for
those of you who need to explain why that is a waste of time, money
and effort in all the very best techno-garble, Merry Christmas!
Happy Ears!
Al