[Milsurplus] RE: [ARC5] serious tube

[D C *Mac* Macdonald]

It's all based upon the theory of negative resistance.
When you design negative resistors into a special
circuit, you can develop a negative frequency
oscillator.  The output of this is fed to a transformer
with a third (tertiary) winding.  A transformer so
constructed is known as a step-aside transformer as
opposed to the normal step-up or step-down version.
This ouptut drives a a cathode-coupled current
crippler, which is the heart of the infra-red
destruction generator.

Mac - K2GKK/5



----Original Message Follows----
From: mikea <mikea at mikea.ath.cx>
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] RE: [ARC5] serious tube
Date: Tue, 31 Oct 2006 08:18:15 -0600

On Mon, Oct 30, 2006 at 07:01:38PM -1000, Michael Tauson wrote:
 > Hmmm ...
 >
 > On 10/30/06, david_jackson at agilent.com <david_jackson at agilent.com> wrote:
 > > Because it got an endorsement from Fred Voltz of Emotive Audio (whoever 
that
 > > is).
 >
 > And in that endorsement is:
 >
 > > Your Sophia Electric(tm) mesh plate 274B is the best rectifier tube I 
have ever
 > > heard including the actual Western Electric 274B.
 >
 > How does one hear a rectifier ... aside from the terminal arc over
 > that comes now and then?  And what the ehck is a sound stage in this
 > application of the term:

 > > Sophia Electric(tm) 274B tube is a premium rectifier tube for a
 > > 5U4/5R4/5AR4* direct replacement with 3X longer plate structure, thus
 > > it has a deeper, wider sound stage and even smoothier sound than
 > > Mullard 5AR4.

The same way they "hear" the quality of the AC coming from the wall to the
power supply. It's amazing how changing out the last few feet of the power
transmission system -- the Many-Miles-Long power transmission system --
can make such a huge difference. Maybe these people have grain-aligned,
unidirectionally-drawn, oxygen-free copper between their ears; it sure
doesn't behave like brain tissue.

The "sound stage" verbiage is utter and complete bafflegab. Next thing
they'll be talking about threel proctors, the effect of the transformer
paint on the audio, and how the thrimaleen basts only when the upset
gezornenplatz, or something.

 > Have we missed out on something *wonderful* all this time?

Yes, fleecing the suckers. I'm hampered by honesty and pity, both, or I
could have been very, very rich selling this ... _stuff_. This is Yet
Another Wonderful Demonstration that P. T. Barnum was an optimist.

--
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin
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