From dfischer at usol.com  Thu Nov  3 18:30:08 2011
From: dfischer at usol.com (Duane Fischer, W8DBF)
Date: Thu, 3 Nov 2011 17:30:08 -0500
Subject: [Vintage-Audio] Edgar M. Villchur, a Hi-Fi Innovator,
	Is Dead at 94
References: <4EA45498.8030307@comcast.net>
Message-ID: <009b01cc9a78$27c840d0$f154e8cc@hpdc5100mt>

Hi Bob,

Thanks for posting this. It is such a shame that this list with 'all' of its 
knowledgable and gifted subscribers gets so few posts.

I have a pair of AR-4 speakers in my utility room. They work, but the 
cabinets need some TLC! I got them for twenty dollars, so I can't complain! 
The AR-3 speakers got a lot of press. Several of my buddies had them and 
they did sound good, especially considering their size.

I hope all is well with you OM. I miss chatting with you on the air. I did 
hear you one Sunday during the Vintage SSB Net, but there was no propagation 
from here to your QTH.

I also sent you several e-mails and left two phone messages. You either did 
not get any of the above or forgot to answer them.

Duane, W8DBF

P.S. I finally got this amazing Toshiba DVR-620 figured out. Fantastic!
----- Original Message ----- 
From: "Robert Nickels" <ranickel at comcast.net>
To: "Vintage home and professional audio equipment from 1975 back" 
<vintage-audio at mailman.qth.net>
Sent: Sunday, October 23, 2011 12:53 PM
Subject: [Vintage-Audio] Edgar M. Villchur, a Hi-Fi Innovator, Is Dead at 94


As reported in the New York Times, another industry giant has passed.

73, Bob W9RAN


Edgar M. Villchur, whose invention of a small loudspeaker that could
produce deep, rich bass tones opened the high-fidelity music market in
the 1950s to millions of everyday listeners, died on Monday at his home
in Woodstock, N.Y. He was 94.

His daughter, Miriam Villchur Berg, confirmed the death.

Audiophiles have hailed Mr. Villchur as a seminal figure in the field.
In its 50th-anniversary issue in 2006, Hi-Fi News ranked him No. 1 among
the ?50 Most Important Audio Pioneers.? John Atkinson, the editor of
Stereophile magazine, credits him with bringing hi-fi into the home.

?Villchur?s development of what he called the acoustic suspension woofer
made it possible for music lovers to buy loudspeakers that were
domestically acceptable,? Mr. Atkinson said in a 2009 interview. ?A
guy?s wife could accept their presence on the bookshelf in the living room.?

Before Mr. Villchur?s invention of the AR-1 loudspeaker in 1954,
producing high-fidelity bass tones required speakers large enough to
generate the long wavelengths of the deep notes. Some speakers were as
large as a refrigerator. In the cabinet, mounted toward the front, would
be what hi-fi specialists call the drive unit: a cone-shaped device
activated by a magnet and a coil of wire to produce the sound. In the
early days of hi-fi, manufacturers were not fully aware of the
relationship between the drive unit and the acoustic role played by the
cabinet itself, and they sometimes left the rear of the cabinet open.

Mr. Villchur realized that if the cabinet were completely sealed, the
air trapped inside would act something like a spring that would control
the cone?s vibrations, greatly enhancing the drive unit?s low-frequency
performance.

?My measurements showed that my little prototype had better bass and
less distortion than anything on the market, yet it was one-quarter the
size,? Mr. Villchur said in an interview with Stereophile in 2005. ?I
thought, ?This has got to be the future of loudspeakers.? ?

It was. By 1966, according to Stereo Review magazine, Mr. Villchur?s
company, Acoustic Research, was the leader in the nation?s speaker
market, with a share of just over 32 percent.

One of Mr. Villchur?s breakthrough speakers was placed on permanent
exhibit at the Smithsonian Institution in 1993.

Mr. Villchur also made two other advances that greatly improved
high-fidelity performance.

He developed one of the first dome tweeters, a drive unit that produces
high frequencies. Before the tweeter, high frequencies were emitted by
the woofer, but with very poor sound quality. Instead of the cone, Mr.
Villchur (and other innovators working independently of one another)
devised small dome-shaped diaphragms that proved optimal for producing
high frequencies.

In the early days of the turntable, one of its biggest problems was an
effect called rumble: vibrations from the motor and the turntable that
were picked up by the needle. Mr. Villchur?s solution was to separate
the motor from the turntable and connect the two with a rubber belt,
significantly reducing the vibrations.

Even though digital sound has largely replaced vinyl and turntables, Mr.
Atkinson said, ?Edgar Villchur?s inventions have led to the application
of scientific principles that are used in every loudspeaker now on the
market.?

Edgar Marion Villchur was born in Manhattan on May 28, 1917, the only
child of Mark and Mariam Villchur, who had immigrated from Russia. His
father was editor of a Russian-language newspaper, his mother a biologist.

It was his service in World War II that sparked Mr. Villchur?s
fascination with sound and electronics. He had graduated from City
College in 1938, then earned a master?s degree in education there two
years later. But within a year he was drafted into the Army Air Forces
and was trained as an electronics technician. For most of the next five
years, while rising to captain, he was responsible for his squadron?s
radio operations in the Pacific.

After the war Mr. Villchur opened a radio shop in Greenwich Village,
making repairs and building custom hi-fi sets. He also taught a course
in sound reproduction at New York University.

Mr. Villchur married Rosemary Shafer in 1945. Besides his wife and
daughter, he is survived by a son, Mark, of Boston.

The Villchurs moved to Woodstock in 1952. In his basement, Mr. Villchur
began testing his notion of a sealed-cabinet loudspeaker. One day in
spring 1954, speaking to his acoustics class at N.Y.U, he hinted at his
idea. One student, Henry Kloss, stayed after class, eager to learn more.
Soon, student and teacher were in Mr. Villchur?s 1938 Buick, headed to
Woodstock. In Mr. Villchur?s basement workshop, they listened to the
copious low-frequency tones on an LP recorded by the renowned organist
E. Power Biggs.

Mr. Kloss had a loft in Cambridge, Mass., where he was already building
mail-order cabinets for Baruch-Lang speakers. It became the first
headquarters for Acoustic Research. Mr. Kloss, who died in 2002, is
credited with designing the production process for the AR-1 speaker and
its successors, the AR-2 and the AR-3, which combined Mr. Villchur?s
woofer and tweeter models.

Among Mr. Villchur?s duties was promoting the products. In the early
1960s he sponsored ?live versus recorded? concerts around the country,
including one in a recital room at Carnegie Hall and another at Grand
Central Terminal. At the concerts, a string quartet would play a piece
of music, then mime it as parts of a recording by the same quartet
played through a pair of AR-3 speakers. The listeners were rarely able
to detect the switchovers.

Mr. Villchur was president of Acoustic Research until 1967. After being
bought by a series of manufacturers, the company went out of business in
2004. Its brand name was bought by the Audiovox Corporation.

Soon after leaving Acoustic Research, Mr. Villchur started the
Foundation for Hearing Aid Research in Woodstock, where he developed a
prototype of the multichannel compression hearing aid that has become an
industry standard.
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Internal Virus Database is out-of-date.
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9:44 AM


From n6vg at att.net  Sat Nov  5 23:20:34 2011
From: n6vg at att.net (Jerry)
Date: Sat, 5 Nov 2011 20:20:34 -0700
Subject: [Vintage-Audio] Boston Acoustics Recepter Radio
Message-ID: <64FABED087914DDAB3644C6787763FD4@HP24398304791>

Please answer off list to     n6vg at att.net

I am looking for an older Boston Acoustics Recepter Radio
that uses the 3 AAA  bats for memory and clock.  The bats
are inserted in the back of the radio.
A inop/bad radio would be ok if all the parts are inside it.

Thanks from Jerry in Sacramento, CA

From dfischer at usol.com  Mon Nov  7 16:43:52 2011
From: dfischer at usol.com (Duane Fischer, W8DBF)
Date: Mon, 7 Nov 2011 16:43:52 -0500
Subject: [Vintage-Audio] Boston Acoustics Recepter Radio
References: <64FABED087914DDAB3644C6787763FD4@HP24398304791>
Message-ID: <017201cc9d96$d7786a70$e654e8cc@hpdc5100mt>

Jerry,

Hey! This sounds interesting. Why not tell us more about this item?

Duane, W8DBF

----- Original Message ----- 
From: "Jerry" <n6vg at att.net>
To: <vintage-audio at mailman.qth.net>
Sent: Saturday, November 05, 2011 10:20 PM
Subject: [Vintage-Audio] Boston Acoustics Recepter Radio


> Please answer off list to     n6vg at att.net
>
> I am looking for an older Boston Acoustics Recepter Radio
> that uses the 3 AAA  bats for memory and clock.  The bats
> are inserted in the back of the radio.
> A inop/bad radio would be ok if all the parts are inside it.
>
> Thanks from Jerry in Sacramento, CA
> ______________________________________________________________
> Vintage-Audio mailing list
> Home: http://mailman.qth.net/mailman/listinfo/vintage-audio
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Vintage-Audio at mailman.qth.net
>
> List Administrator: Duane Fischer, W8DBF
> ** For Assistance: dfischer at usol.com **
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>
> -- 
> Internal Virus Database is out-of-date.
> Checked by AVG.
> Version: 7.5.557 / Virus Database: 270.12.4/2081 - Release Date: 4/26/2009 
> 9:44 AM
>
> 


