On Oct 26, 8:27 am, Chel van Gennip wrote:
Andre Jute wrote:
That is why we have this thread, to explain to the three self-styled
"engineers" Graham Stevenson, Arny Krueger and Don Pearce that a Class
A amplifier must have its signal limited or it is no longer a Class A
amplifier. How can any properly educated engineer not know that the
signal in an amplifier class is by necessity limited? Yet those three
signed their names repeatedly to a claim that Class A is
an amplification Class in which "the output device(s) never cease
conducting under any signal condition."

You really should try to express yourself more clearly. There are
several modes of amplification. In Class A "the output device(s)never
cease conducting" Amplifiers are designed to use one (or more) modes of
amplification. When used outside the specified signal range, the
amplifier wont operate in the designed mode(s) of amplification. e.g. if
you don't supply mains power, none of the output devices will conduct.
Even switched off, and not operating at all, an amplifier designed to
operate in Class A will remain an amplifier desinged to operate in Class A,

Now you're down to pulling the plug to make an absurd misdefinition by
Graham Poopie Stevenson work. That is taking professional solidarity
among "engineers" too far.

But all right, Mijnheer van Gennip, you want to be a slim jannie --and
in English too! So show us how you would design an amplfier either
Class A or with substantial Class A output (i.e. Class AB) in which
"the output device(s)never cease conducting under any signal
condition". Note the important qualification "under any signal
condition". That means exactly what it says in plain English: you
design the amplifier, I choose the signal level to be vastly larger
than the specified bias, then you prove it still operates in Class A.

May you have Pinkerton's Luck. By all means call on the Three Stooges
for help.

Andre Jute
Visit Andre's books at http://members.lycos.co.uk/fiultra/THE%20WRITER'S%20HOUSE.html

Visit Jute on Amps at http://members.lycos.co.uk/fiultra/
"wonderfully well written and reasoned information
for the tube audio constructor"
John Broskie TubeCAD & GlassWare
"an unbelievably comprehensive web site
containing vital gems of wisdom"
Stuart Perry Hi-Fi News & Record Review

In article . com,
Andre Jute wrote:

On Oct 26, 8:27 am, Chel van Gennip wrote:
Andre Jute wrote:
That is why we have this thread, to explain to the three self-styled
"engineers" Graham Stevenson, Arny Krueger and Don Pearce that a Class
A amplifier must have its signal limited or it is no longer a Class A
amplifier. How can any properly educated engineer not know that the
signal in an amplifier class is by necessity limited? Yet those three
signed their names repeatedly to a claim that Class A is
an amplification Class in which "the output device(s) never cease
conducting under any signal condition."

You really should try to express yourself more clearly. There are
several modes of amplification. In Class A "the output device(s)never
cease conducting" Amplifiers are designed to use one (or more) modes of
amplification. When used outside the specified signal range, the
amplifier wont operate in the designed mode(s) of amplification. e.g. if
you don't supply mains power, none of the output devices will conduct.
Even switched off, and not operating at all, an amplifier designed to
operate in Class A will remain an amplifier desinged to operate in Class A,

Now you're down to pulling the plug to make an absurd misdefinition by
Graham Poopie Stevenson work. That is taking professional solidarity
among "engineers" too far.

But all right, Mijnheer van Gennip, you want to be a slim jannie --and
in English too! So show us how you would design an amplfier either
Class A or with substantial Class A output (i.e. Class AB) in which
"the output device(s)never cease conducting under any signal
condition". Note the important qualification "under any signal
condition". That means exactly what it says in plain English: you
design the amplifier, I choose the signal level to be vastly larger
than the specified bias, then you prove it still operates in Class A.

Andre, I'm surprised you would give Chel such a trivially easy challenge
to meet. So as not interfere I will save my solution for a later post,
assuming anyone is even interested.


Regards,

John Byrns

--
Surf my web pages at, http://fmamradios.com/

On Oct 26, 2:38 pm, John Byrns wrote:
In article . com,
Andre Jute wrote:



On Oct 26, 8:27 am, Chel van Gennip wrote:
Andre Jute wrote:
That is why we have this thread, to explain to the three self-styled
"engineers" Graham Stevenson, Arny Krueger and Don Pearce that a Class
A amplifier must have its signal limited or it is no longer a Class A
amplifier. How can any properly educated engineer not know that the
signal in an amplifier class is by necessity limited? Yet those three
signed their names repeatedly to a claim that Class A is
an amplification Class in which "the output device(s) never cease
conducting under any signal condition."

You really should try to express yourself more clearly. There are
several modes of amplification. In Class A "the output device(s)never
cease conducting" Amplifiers are designed to use one (or more) modes of
amplification. When used outside the specified signal range, the
amplifier wont operate in the designed mode(s) of amplification. e.g. if
you don't supply mains power, none of the output devices will conduct.
Even switched off, and not operating at all, an amplifier designed to
operate in Class A will remain an amplifier desinged to operate in Class A,

Now you're down to pulling the plug to make an absurd misdefinition by
Graham Poopie Stevenson work. That is taking professional solidarity
among "engineers" too far.

But all right, Mijnheer van Gennip, you want to be a slim jannie --and
in English too! So show us how you would design an amplfier either
Class A or with substantial Class A output (i.e. Class AB) in which
"the output device(s)never cease conducting under any signal
condition". Note the important qualification "under any signal
condition". That means exactly what it says in plain English: you
design the amplifier, I choose the signal level to be vastly larger
than the specified bias, then you prove it still operates in Class A.

Andre, I'm surprised you would give Chel such a trivially easy challenge
to meet. So as not interfere I will save my solution for a later post,
assuming anyone is even interested.

You'd really assume that on a newsgroup called "rec.audio.pro" a dozen
solutions would by now have been volunteered. Instead they've wasted
everyone's time bitching that amp design challenges don't belong on
their newsgroup.


Regards,

John Byrns

--
Surf my web pages at, http://fmamradios.com/

I wouldn't be so fast in saying it is too easy a challenge. You might
get stuck again with having to tutor some diplomaed quarterwit, as you
did that time poor Pinkerton was dumb enough to announce he would
design a solid state amp that would sound just like a 300B I would
design at the same time. I nearly died of boredom waiting while you
and Patrick gave Pinkerton a crash course that stretched on and on
while yet more and more lacunae in his education became visible --
check in the ill-educated "engineers" thread for an estimate that
electronic engineers receive only 15 hours of education altogether on
amplifier design. (It's offered as an excuse for the incompetence of
Poopie, Slapdash and Bluster, so it might be an underestimate, but
even two or three times that much would still be a low number.)
Pinkostinko's incompetence is being explained before our very eyes --
about forty years too late for Pinko. I have high hopes that this
Dutch fellow might be much more competent; I hold Dutch education,
engineering and graphic arts in the very highest esteem.

Andre Jute
Impedance is futile, you will be simulated into the triode of the
Borg. -- Robert Casey

On Oct 27, 12:09 am, Andre Jute wrote:
On Oct 26, 8:27 am, Chel van Gennip wrote:





Andre Jute wrote:
That is why we have this thread, to explain to the three self-styled
"engineers" Graham Stevenson, Arny Krueger and Don Pearce that a Class
A amplifier must have its signal limited or it is no longer a Class A
amplifier. How can any properly educated engineer not know that the
signal in an amplifier class is by necessity limited? Yet those three
signed their names repeatedly to a claim that Class A is
an amplification Class in which "the output device(s) never cease
conducting under any signal condition."

You really should try to express yourself more clearly. There are
several modes of amplification. In Class A "the output device(s)never
cease conducting" Amplifiers are designed to use one (or more) modes of
amplification. When used outside the specified signal range, the
amplifier wont operate in the designed mode(s) of amplification. e.g. if
you don't supply mains power, none of the output devices will conduct.
Even switched off, and not operating at all, an amplifier designed to
operate in Class A will remain an amplifier desinged to operate in Class A,

Now you're down to pulling the plug to make an absurd misdefinition by
Graham Poopie Stevenson work. That is taking professional solidarity
among "engineers" too far.

But all right, Mijnheer van Gennip, you want to be a slim jannie --and
in English too! So show us how you would design an amplfier either
Class A or with substantial Class A output (i.e. Class AB) in which
"the output device(s)never cease conducting under any signal
condition". Note the important qualification "under any signal
condition". That means exactly what it says in plain English: you
design the amplifier, I choose the signal level to be vastly larger
than the specified bias, then you prove it still operates in Class A.

May you have Pinkerton's Luck. By all means call on the Three Stooges
for help.

Andre Jute
Visit Andre's books athttp://members.lycos.co.uk/fiultra/THE%20WRITER'S%20HOUSE.html

Visit Jute on Amps athttp://members.lycos.co.uk/fiultra/
"wonderfully well written and reasoned information
for the tube audio constructor"
John Broskie TubeCAD & GlassWare
"an unbelievably comprehensive web site
containing vital gems of wisdom"
Stuart Perry Hi-Fi News & Record Review- Hide quoted text -

- Show quoted text -

Nice puzzle Andre. Pointless from most perspectives, but interesting
anyway.

Now how does your personal attack forward the audio discussion? Do you
think more people come in to contribute because you behave that way?
cheers,
Douglas

On Oct 26, 4:55 pm, Multi-grid wrote:

Nice puzzle Andre. Pointless from most perspectives, but interesting
anyway.

Now how does your personal attack forward the audio discussion? Do you
think more people come in to contribute because you behave that way?


Andre needs attention in the same way a potted plant needs care and
feeding. And just as a potted plant would be entirely helpless without
such care and feeding, Andre would shrivel up and die without the
attention he craves.

One needs to keep in mind that Andre is to tube amp design as National
or ITC were to tube manufacturing. Both of them rebranded work done by
others as their own. Once that is understood, the rest becomes
trivial.

Beware of those who cite themselves as "experts".

Peter Wieck
Wyncote, PA

One needs to keep in mind that Andre is to tube amp design as National
or ITC were to tube manufacturing. Both of them rebranded work done by
others as their own. Once that is understood, the rest becomes
trivial.


Sounds like Ripoffchardson!

On Oct 27, 2:41 am, Peter Wieck wrote:
On Oct 26, 4:55 pm, Multi-grid wrote:

Nice puzzle Andre. Pointless from most perspectives, but interesting
anyway.

Now how does your personal attack forward the audio discussion? Do you
think more people come in to contribute because you behave that way?

Andre needs attention in the same way a potted plant needs care and
feeding. And just as a potted plant would be entirely helpless without
such care and feeding, Andre would shrivel up and die without the
attention he craves.

I have noticed he has never answered a question about one of his
claims. EVER, and I ran through a lot of archives before signing up. I
don't really expect an answer; I doubt he's capable of it.



One needs to keep in mind that Andre is to tube amp design as National
or ITC were to tube manufacturing. Both of them rebranded work done by
others as their own. Once that is understood, the rest becomes
trivial.

Just like his trivial, loophole-ridden 'challenge' he opened with.



Beware of those who cite themselves as "experts".

ummm, all sarcasm aside....Duuuhhhh! anyhooo, it would be good for the
group S/N ratio if a slightly higher degree of civility were
practiced, in combination with denouncing attacks when they
happen( followed by ignoring the thread perhaps ).
cheers,
Douglas


Peter Wieck
Wyncote, PA

ummm, all sarcasm aside....Duuuhhhh! anyhooo, it would be good for the
group S/N ratio if a slightly higher degree of civility were
practiced, in combination with denouncing attacks when they
happen( followed by ignoring the thread perhaps ).
cheers,
Douglas


up yours, ****head, I'm denouncing
your mealy mouth aatempt at an attack, right here, right now.
if you can't keep up with our level of vitriol,
go find some tamer group,or buy yourself a pair of balls!
and whip up some sarcasm, next time.

On Oct 26, 8:55 pm, Clyde Slick wrote:

up yours, ****head, I'm denouncing
your mealy mouth aatempt at an attack, right here, right now.
if you can't keep up with our level of vitriol,
go find some tamer group,or buy yourself a pair of balls!
and whip up some sarcasm, next time.


My, my... the spittle is really flying.

Clyde, with respect, Andre is not worth the water. Were it not for
John (who is a real person albeit a strange one) and Westiepoo (who
may or may not be a real person - but is certainly nearly as much of a
poseur and liar as Andre), Andre is a sad, sick neverwas depending on
a series of sockpuppets and shadows for life and support.

Yo - Commander!! Glassgrey!!

You are up now. Andre is about to throw the sardines - you need to
bark like seals and balance a ball on your nose!

Peter Wieck
Wyncote, PA

A baby seal walked into a bar. The barkeep asked him what he would
like: "Anything but a Canadian Club".

Andre Jute wrote:
[irrelevant stuff deleted]

Please keep this thread in rec.audio.opinion where it belongs. This sort
of material is not appropriate for rec.audio.pro. Thank you.
--scott

--
"C'est un Nagra. C'est suisse, et tres, tres precis."