Re: The KISS AMP: John Stewart's "contribution"

I read every word of the post by John Stewart PEng (quoted in full
below). I asked him specifically to discuss this circuit:
http://members.lycos.co.uk/fiultra/T39-KISS-300B-Ultrafi-crct.jpg
He doesn't say anything about it, perhaps because he can find no nits
to pick. Instead he discusses an obsolete version of this circuit:
http://members.lycos.co.uk/fiultra/t68mzwe417acircuit.jpg
which I specifically told him was only a temporary proto to prove part
of the circuit he should have discussed. The ratings of the resistors
he mentions were changed well before this. Perhaps he chose to write
about an obsolete circuit to have a nit to pick. He wants me to use,
instead of the traditional chokes, some line conditioner made by
Schaffner (yech!), presumably his current employers. He then says
about yet another circuit:
http://members.lycos.co.uk/fiultra/T44bis-'Populaire'-crct.jpg
that
Your 6SN7/300B amp could be improved easily by a simple circuit
addition. I will leave it to you, the self professed whiz to figure that
one out.
All the rest is the same sort of zero-technical-content, timewasting
abuse and spite. If this is the best John Stewart PEng can come up
with, I'll put him in my killfile with the other useless Ugly
"Engineers".

Andre Jute
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

*********
This is my original objection to an earlier torrent of
zero-technical-content abuse by John Stewart:
*********
John Stewart wrote:
But why bother going further with this half-baked amplifier? It is the
effort of an amateur.

My opinion, anyway. John Stewart

Earlier opinions from John Stewart included "Bunk!", sent about six
times. But no technical details. Stewart is a qualified engineer once
employed as a salesman by Hewlett Packard and a contributor to some of
the same hobby magazines I once wrote for (the difference being that
they paid me about ten times what they pay him; still not enough to
make it worthwhile, though). He is therefore presumed capable of making

a technical analysis of an amplifier. He hasn't. In fact, many moons
ago I sent John Stewart at his request by mail earlier versions of the
two circuits in question and heard not a single adverse word from him.
We discussed these circuits on RAT before, and, guess what, not a
single adverse word from John. Suddenly we have "Bunk" (six times or
more) and "half-baked" from John Stewart, and "amateur" hurled as an
epithet. Is the difference that since then I have written about the
"Ugly Engineers"?

If you have a technical point, Stewart, make it. I never claimed to be
anything other than an amateur. I published the circuit for discussion.

I invited discussion. So far, from you, we have had only abuse, in
circumstances that lead one to the conclusion that you consider
electronic virtue to be a popularity contest, which is a most
unprofessional attitude (1). The circuit you want is here, just so you
don't make the same mistake as some other clowns and start talking
pointlessly about a part-proto used to prove a part of another amp as
if it is the main event (oops! you have already!):
http://members.lycos.co.uk/fiultra/T39-KISS-300B-Ultrafi-crct.jpg

I look forward to your *technical* contribution to improving my
"half-baked" "amateur" circuit, if you wouldn't mind condescending to
the level of actually talking technicalities about the circuit under
discussion instead of sputtering "Bunk!" into your booze because I
clipped some fellows from your fraternity's bargain basement in the ear

for impertinence. Stick to what you know, which is the electronics, and

you will find me, and many others, onside.

I've opened a whole thread for you so you can take all the bandwidth
you think you are entitled to.

Andre Jute
Professional dilettante

(1) If this is how professional engineers behave, I'll cling tooth and
nail to my amateur status.
*********
Here is John Stewart PEng's silly reply:
*********
John Stewart PEngwrote:

John Stewart wrote:

Thankyou for the opportunity provided here to comment on your many posts
on RAT. My Nutscape counted something like 864 over the past nine
months. It is time to call a Spade a Spade.

I had not done so in the past as I felt this forum is for all comers, no
matter what their opinions. But now I really must say something, since
it is the kind of bull*** you have posted here over the last several
months that causes many of us to be looked upon by others as
'AudioPhools'.

Unlike you, I don't spend a lot of time here on the net for any reason,
including reading your drivel.

You must be genetically related to a Chameleon, showing up here in many
colorful disguises. You are also quite similar to a small child, doing
anything to attract attention. God knows why anyone would consider you
as a source of quality audio equipment. Lots of cosmetics but little of
substance under the cover.

I recall first seeing that single tube thing (preamp, line amp, pwr
amp?) about three years ago & commented at the time I thought it to be a
very expensive way to charge a battery. It hasn't changed & we still
have no measurement data. What is is supposed to do? Perhaps charge a
battery or none of the above well!

A quick look at that WE417 thing finds a 0R68, 50 W resistor dissipating
2.45 watts. And a 0R47, 50 W resistor is dissipating 164 mW. We see two
330R, 25 W resistors in the plate leads of the rectifier. They won't
help much should there be a cap failure. I also see two very expensive
Ludahl chokes hooked up to stop common mode PS problems. That
interference will get in thru the back door on your heater leads. Better
a power line device such as made by Schaffner. That will stop anything
from getting in. And at a much better cost.

Your 6SN7/300B amp could be improved easily by a simple circuit
addition. I will leave it to you, the self professed whiz to figure that
one out.

Please show us how any of the circuits you have posted are in any way
superior to any other common circuit consisting of the same parts. In
the real world performance is measured by results vs. cost. Your stuff
fails that test in a most miserable way.

And if you have a red phone to contact Ed Dell at Audio Amatuer let us
know that as well. How else would you know you were paid more than I?
And what does it matter?

Spiteful? I did not intend that at all. Factual? Yes, indeed!

Fiultra = Ultrafi? Phooey! Oh, and BUNK!

Professional you are. But the category really is Bull***!

My thoughts anyway. Cheers to all, John Stewart PEng

.

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