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 Post subject: Sonora wireless phono/ with VIDEO
PostPosted: Jan Thu 28, 2016 12:50 am 
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Joined: Jul Sun 08, 2007 9:40 pm
Posts: 4122
Location: Muscletown, USA
Anyone familiar with this? Read the description:

http://york.craigslist.org/ele/5383632724.html

VIDEO at end


Last edited by DKinYORKpa on Feb Mon 08, 2016 10:22 pm, edited 2 times in total.

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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 2:04 am 
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Joined: Feb Thu 17, 2011 11:27 pm
Posts: 13497
Location: Long Island, N.Y.
I have heard of similar sets, but never saw one working. It's a very nice little deco cabinet, it works, and is priced to sell. If I was local I'd grab it.


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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 2:22 am 
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Location: Long Beach, CA 90808
Horrible pictures... neat player

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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 6:20 am 
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Joined: Nov Fri 15, 2013 10:17 pm
Posts: 2021
Location: Haddon Heights NJ
Quote:
When I went over it, it has been recapped, the tubes have been checked, and the operation has been verified with a signal generator


How the hell do you verify the operation with a signal generator?

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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 10:09 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 12549
Location: Mpls, Minnesota
dan3460 wrote:
How the hell do you verify the operation with a signal generator?

Inject an audio signal at the pickup leads.

Dave


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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 1:46 pm 
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Joined: Nov Fri 15, 2013 10:17 pm
Posts: 2021
Location: Haddon Heights NJ
That thing doesn't have a speaker. wouldn't you verify the operation by listening on a radio to see if you pickup the signal?

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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 2:04 pm 
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Joined: Jul Mon 26, 2010 8:30 pm
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Location: Annapolis, MD
Perhaps send the seller an e-mail and ask what they actually did.....

My issue is how they use one 50L6 for audio amp and RF oscillator / modulator.

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"Measure voltage, but THINK current." --anon.


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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 2:42 pm 
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Joined: Jul Sun 08, 2007 9:40 pm
Posts: 4122
Location: Muscletown, USA
I did send a message thru CL. I want to know who went to the trouble of recapping and testing but it still needs a needle. And does motor turn?


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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 4:17 pm 
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Location: Seattle, WA
pixellany wrote:
My issue is how they use one 50L6 for audio amp and RF oscillator / modulator.

That's the magic part. But it does seem that is the claim. Sonora lists several record players with that tube lineup in RMorg, for instance:
http://www.radiomuseum.org/r/sonora_rad ... wf_78.html

Pre-war, they even had some wireless record players that used only a single tube, with a tetrode and a half wave rectifier in the same tube! I would bet these were not hi-fi units.
http://www.radiomuseum.org/r/sonora_rad_w17.html

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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 9:37 pm 
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Location: Perrysburg, OH, U.S.A.
Here's the Ryders schematic: http://www.nostalgiaair.org/pagesbymodel/501/M0018501.pdf

The picture with the turntable lifted looks to me like the idler is missing it's tire.

John

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 Post subject: Re: Sonora wireless phono
PostPosted: Jan Thu 28, 2016 10:15 pm 
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Joined: Jul Sun 08, 2007 9:40 pm
Posts: 4122
Location: Muscletown, USA
I'm getting it tomorrow. The motor works. He did the recapping. He rigged his guitar up to the tone arm connection and he heard the sound on a radio. He seems like a nice guy. He happens to be working downtown tomorrow and will give me a call. He needs a 7Y4 and will knock $10 off the price for one; I have many. I'll have a follow-up post soon.


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 Post subject: Re: Sonora wireless phono
PostPosted: Feb Sun 07, 2016 1:32 pm 
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Joined: Jul Sun 08, 2007 9:40 pm
Posts: 4122
Location: Muscletown, USA
VIDEO........it's short.......one 78 RPM song

https://www.youtube.com/watch?v=_xrEnK0i-g4


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 Post subject: Re: Sonora wireless phono/ with VIDEO
PostPosted: Feb Sun 07, 2016 3:58 pm 
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Joined: Jun Wed 12, 2013 1:30 pm
Posts: 6319
Location: Southport NC
^^Good for you..you did grab it. Ive seen these for sale (Utah/Detrola models etc) but Ive never seen one actually working. +1 for cool factor. 8)


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