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 Post subject: Sonotone 3t cartridge - Need help
PostPosted: May Fri 19, 2017 4:46 pm 
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Joined: Jan Tue 22, 2013 5:49 am
Posts: 70
Location: Los Angeles, CA
I'm planning on reinstalling a 3t cartridge into my 1957 RCA SHF-3 console. I was wondering how the set up should look for the needle in the saddle. Mine seem to be depressed or something, but when pressure is applied to needle it sinks. Any help would be great!


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SONOTONE 3T_2.jpg
SONOTONE 3T_2.jpg [ 13.92 KiB | Viewed 262 times ]
3T_Needle.jpg
3T_Needle.jpg [ 11.1 KiB | Viewed 254 times ]
3T_2.jpg
3T_2.jpg [ 10.65 KiB | Viewed 254 times ]
3T_3.jpg
3T_3.jpg [ 10.61 KiB | Viewed 254 times ]
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 Post subject: Re: Sonotone 3t cartridge - Need help
PostPosted: May Fri 19, 2017 10:36 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 976
Location: 77001
Looks like the transducer element is compressed and shot.

Sonotone 3-T mono cartridge is probably 60 years old, and had a lot of years
of a moderately heavy tonearm pressure on it.

I'd go with a new ceramic Pfanstiehl 228 stereo cart and
jumper wire it for mono.
You have plenty of power in the RCA amp and the 3-T has the
same output of 0.5 volts as the new Pfanstiehl.

The Pfanstiehl will give you a much improved tracking and
you can also play stereo records with it.


Hotwax


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 Post subject: Re: Sonotone 3t cartridge - Need help
PostPosted: May Sat 20, 2017 12:27 am 
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Joined: Jan Tue 22, 2013 5:49 am
Posts: 70
Location: Los Angeles, CA
Hi hotwax, is there anyway to salvage one of these? Are they both shot?


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 Post subject: Re: Sonotone 3t cartridge - Need help
PostPosted: May Sat 20, 2017 5:56 am 
Member

Joined: Jan Wed 16, 2013 12:04 am
Posts: 976
Location: 77001
You would have to drill out the rivets and figure out
some way to add something to lift the stylus yoke up.
The material would have to enable transfer of the
piezo generated voltage, I would surmise.

You can read some here on how they were manufactured:
http://roger-russell.com/sonopg/sonopc.htm

For all the effort, I'd just go with the Pfanstiehl.
I love Sonotone carts, too, but when they're done,
they're done, in my book.

Good luck,
H


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 Post subject: Re: Sonotone 3t cartridge - Need help
PostPosted: May Sat 20, 2017 6:10 am 
Member

Joined: Jan Tue 22, 2013 5:49 am
Posts: 70
Location: Los Angeles, CA
I think I would have to see one in good condition to know what it's suppose to be like. Thank you hot wax, I'm moving on from my nostalgia. I have visited roger's website, its a fun read about the sonotone history. Would love to keep it all original but it seems to be impossible.

You are a wonderful resource in this forum. Thank you for your response.


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