10 technologies that refuse to die

Feb 16, 2004 72 Replies

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and skip down to the reel-to-reel tape part.


-- @@F@r@o@m@@O@r@a@n@g@e@@C@o@u@n@t@y@,@@C@a@l@,@@w@h@e@r@e@@ ###Got a Question about ELECTRONICS? Check HERE First:###

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My email address is whitelisted. *All* email sent to it goes directly to the trash unless you add NOSPAM in the Subject: line with other stuff. alondra101 hotmail.com Don't be ripped off by the big book dealers. Go to the URL that will give you a choice and save you money(up to half).
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You'll be glad you did! Just when you thought you had all this figured out, the gov't changed it:
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that doesnt exist yet.

The strangest part is, I mess around with tubes, yet I'm no hard-core audiophool nor an old fossil!

Tim

-- "I have misplaced my pants." - Homer Simpson | Electronics, - - - - - - - - - - - - - - - - - - - - - - -+ Metalcasting and Games:

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All I see on MSN.COM is soothing blank white pages. They must know that I'm using Netscape. No big loss.

John

Try Opera (works for me), or maybe Mozilla. Of course, I have to tell Opera to lie and announce itself as M$IE.

I got a good laugh the last time I picked up a copy of "Stereo Review" and read an argument in the LTTE over _speaker cables._ Half a dozen pretentious twits claimed that they could hear the difference between oxygen-free high-conductivity copper and silver-plated OFHC, or twisted-pair and coax cable, or plain stranded and litz cable, ad nauseum.

In a randomised double-blind trial? :-)

Tim

Love is a travelator.

I use Mozilla and it renders for me. Does the Google cash do any better? http://216.239.57.104/search?q=cache:e8DLAmbjiNIJ:g.msn.com/0US!s6.13736_3390/35.b1514/6%3F%3Fcm%3DCenterText+%22Yes,+Virginia,+people+still+use+typewriters%22+%22By+Eric+Scigliano%22&hl=en&lr=lang_en&ie=UTF-8

In my early days I traveled the back roads of North Carolina fixing electronic organs. The tallest thing in the landscape was usually the spire of my destination. When those summer storms blew in, it was just amazing how many calls we got for the newer stuff compared to the old toob stuff.

----------------- Nothing wrong with tubes, except thinking they are linear/sound good! As an easily fabricated medieval switching device they're fine.

-Steve

-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!! http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public

----------- The silly thing is that even if some of this stuff DID do wonders for the purity of sound, from a technical aspect, we won't know it till we design ourselves some new bodies and brains with a decent set of ears, so that we can hear worth a damn!!

Even now, our technology is pouring pearls out before our swine-like pitifully evolved senses.

-Steve

-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!! http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public

---------------- Because the new stuff was 50 years younger and less perfected yet.

-Steve

-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!! http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public

------------ That's recent html command baloney, I use old Netscape 3.04G and 4.72, and I find that these avoid a lot of trouble and are much faster!!

-Steve

-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!! http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public

I read in alt.binaries.schematics.electronic that Stephen J. Rush wrote (in ) about '10 technologies that refuse to die', on Tue, 17 Feb 2004:

Not really; the amplifier output impedance and the lead resistance are in series with the voice-coil resistance, which is very much larger, so any effects from the amplifier and lead are small, but not necessarily negligible.

IF the loudspeaker designer 'balanced' its sound with an amplifier connected *directly* to its input connector, then introducing lead resistance would introduce a frequency response error, because the loudspeaker impedance varies with frequency. But loudspeaker designers don't do that; they use a lead, and balance the sound with that lead's resistance in circuit. So, **they should either supply the lead with the loudspeaker (which is what I did when I designed loudspeakers) or at least specify it in the user instructions**.

Regards, John Woodgate, OOO - Own Opinions Only. The good news is that nothing is compulsory. The bad news is that everything is prohibited. http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk

I was thinking **lightning** and the inherent relative resilience that vacuum tubes have to it (and to EMP, as was mentioned in the article), but feel free not to RTFA and to not make the connection.

Well, there ARE still people who get dedicated 3-phase power service for their audio equipment... *shakes head*

----------------- Indeed I DID read the article, but EMP is bogus, any device that generates sufficient EMP at a distance to destroy solid state also blows it to hell in the process at that same distance!! This comes out of energy densities and classical radiation exchange by black bodies.

-Steve

-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!! http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public

On Wed, 18 Feb 2004 05:27:09 GMT, "R. Steve Walz" Gave us:

They work well on live Bass guitar rigs.

Not much else.

Oh... they work well in transmitters. We are doing a 25kW RF project soon.

On Wed, 18 Feb 2004 05:29:34 GMT, "R. Steve Walz" Gave us:

I worked at a place that used all stainless for medical equipment and environmental chambers.

They used ROC made zinc plated 1/4" - 20 x 3/4" cap screws that were SUPPOSED to be grade 6.

They twisted off like taffy, and I was persecuted for bringing it to their attention.

Who's toes did I step on? Quality sucks because some "trained" folk don't recognize what it *IS*.

I got a retard in one group telling me that an inductive current probe is more accurate than a simple current shunt resistor and a voltmeter. Imagine that.

On Thu, 19 Feb 2004 06:02:06 GMT, "R. Steve Walz" Gave us:

However, there are EMP weapon projects currently in development.

---------------- Actually we use them for high power only because they're cheap when compared to the cost of silicon alternatives to klystrons.

They STILL need the s*it compensated out of them for lousy response above low audio!!

-Steve

-Steve Walz rstevew@armory.com ftp://ftp.armory.com/pub/user/rstevew Electronics Site!! 1000's of Files and Dirs!! With Schematics Galore!! http://www.armory.com/~rstevew or http://www.armory.com/~rstevew/Public

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