The Talking Machine Forum — For All Antique Phonographs & Recordings

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 Post subject: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 11:07 am 
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Victor III
Joined: Tue Jan 12, 2010 5:59 pm
Posts: 720
Location: South Jersey
Check this out,,, nice setup. Colorized picture posted on the Antique Phonograph Society Facebook page.

blizz


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schoohouse broadcast.jpg
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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 11:46 am 
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Victor Monarch Special
Stop for a visit when in Oregon.
Joined: Tue Feb 10, 2009 12:25 pm
Posts: 6544
Location: Albany, Oregon
Cool photo. When I read the title of this post I thought... it never happed. But as DeeDee says "you're wrong, wrong again." She'd be correct. Thanks for the photo.

Jerry B.


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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 12:52 pm 
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Victor III
Joined: Tue Jan 12, 2010 5:59 pm
Posts: 720
Location: South Jersey
looks like they just strapped the mic to the horn elbow with some type of rubber fabric.

blizz


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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 1:14 pm 
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Victor I
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Joined: Mon Feb 22, 2016 4:49 am
Posts: 191
Location: Indiana
Great photo. Thanks for posting! S.Levi


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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 3:07 pm 
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Victor V
Joined: Tue Jan 21, 2014 12:55 am
Posts: 2443
Location: Eugene/ Springfield Oregon USA
Jerry B. wrote:
Cool photo. When I read the title of this post I thought... it never happed. But as DeeDee says "you're wrong, wrong again." She'd be correct. Thanks for the photo.

Jerry B.


Even in the odd situations where I'm actually right, I have a philosophy... "You can be right, or you can be happy." :D Works for me! Agree, great photo. Even better than my tube type CD/ MP3 player.
"He who dies with the most shellac wins"- some nutty record geek


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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 6:15 pm 
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Victor III
Joined: Sat Apr 20, 2013 3:01 pm
Posts: 617
Location: Coos Bay, Oregon
Really great photo! If that picture is ca. 1920, then it would seem that the system set up with the Schoolhouse phono is a bit behind the previous attempts. Here is an earlier one by Magnavox, using an adapted Sonora tone-arm playing into a four button carbon microphone. Second photo shows the system in use about 1917, thus making it one of, if not the, earliest electrically amplified phonograph.


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SonoraMagnavoxToneArm.jpg
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Magnavox-2.jpg
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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 6:49 pm 
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Victor IV
Joined: Sun Oct 25, 2009 12:53 pm
Posts: 1251
Location: Michiana
That Magnavox set up used a two button carbon microphone and a transformer. It did not really amplify.

The original photo, however, shows a Magnavox high current transmitter connected to the Victoria, rather than the ordinary solid back telephone transmitter fitted to the DeForest OT-10 transmitter. The receiver shown to the left is an MR-6, with a separate detector/amplifier cabinet. This is an unusual set up indeed, for the MR-6 is much more commonly found mounted along with its accociated detector and amplifier in a single cabinet.


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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 8:11 pm 
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Victor III
Joined: Tue Jan 12, 2010 5:59 pm
Posts: 720
Location: South Jersey
holy crap,,,wayyyy too technical for me,,, I'm a stick the mic in the horn type person LOL

blizz


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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 9:03 pm 
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Victor III
Joined: Sat Apr 20, 2013 3:01 pm
Posts: 617
Location: Coos Bay, Oregon
UV, The tone-arm I show in the above photos actually has four buttons, I've had it apart for rebuild. Perhaps there was more than one version?
Interestingly, the first page of the patent refers to the system as a Sound Amplifier. See paragraph 70 of the page below. Cheers, Russie


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Magnavox-3.pdf [44.67 KiB]
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SonoraMagnavoxToneArm2.jpg
SonoraMagnavoxToneArm2.jpg [ 73.38 KiB | Viewed 224 times ]


Last edited by startgroove on Tue Dec 03, 2019 11:24 am, edited 3 times in total.
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 Post subject: Re: Victor Schoolhouse used to broadcast music,,,, neat pic
PostPosted: Mon Dec 02, 2019 9:16 pm 
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Victor IV
Joined: Sun Oct 25, 2009 12:53 pm
Posts: 1251
Location: Michiana
I have a two button, along with a very early Telemegaphone outfit and a really interesting four button version which is directly driven by the stylus bar. The four button unit uses heavy, oversized button assemblies which are designed to really dissipate heat. Do they ever get hot! The fidelity is not as good as that of the Sonora based design. The rubber gaskets and air column provided some inherent damping which is utterly absent in the directly driven unit.


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