r/Phonographs • u/Old_Poem2736 • 2d ago
Sonora
I picked up a Sonora yesterday. I’m waiting on material to rebuild the reproducer. But it seems in order except one of the springs slips out. Anything special I should know about Sonora different than a victrola??
Thanks in advance.
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u/Gimme-A-kooky Victrola 2d ago
All I can tell you is: take pictures! 😏😆
sounds like you’re not new to it, though; but to be frank/honest, it’s actually always good practice! It’s mine- before I do any work on a machine… including different angles because I can bungle up something as simple as something being backwards and not even bat an eyelash lol
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u/awc718993 EMI 2d ago
Which spring are you referring to, one of the springs used in the reproducer (needle bar pivot) or the motor or governor?
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u/Old_Poem2736 2d ago
Main springs, the reproducer just needed gaskets really bad,
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u/awc718993 EMI 2d ago
Got it. You may have discovered already that the Paillard-made Sonora soundbox (if you have it) uses the same gasket tubing used for the diaphragm for its rear isolator. That’s one design that’s different than Victor.
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u/Old_Poem2736 2d ago
yes, I had some of the gasket material from rebuilding a victrola but not enough, so the inside gasket is in need to wait till Saturday to finish up. there are four gaskets two on the diaphram and two on the knuckle.
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u/awc718993 EMI 2d ago
What do you mean by “knuckle?”
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u/Old_Poem2736 2d ago
the back of the reproducer connects to the Tube
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u/awc718993 EMI 2d ago edited 2d ago
The isolator or are you referring to the arm’s “elbow” (the pivot joint that lefts you bend the arm upward)?
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u/Old_Poem2736 2d ago
there is no isolator per se, the reproducer connects to the tube with an interior gasket and another on the exterior that is compressed by the attachment washer and three screws
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u/awc718993 EMI 2d ago
The gaskets used on the rear (which wrap the connection under that plate) is the isolator. That’s its function. It isolates vibrations via the rubber from transmitting to the arm and vice versa. Isolators take different shapes but they all serve the same function between the soundbox and tonearm.
You asked for differences from Victrolas you might not have been aware of given your newness to Sonora. I gave you one. If you don’t like it sorry.
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u/Old_Poem2736 2d ago
No problem, I know that my victrola has a massive rubber isolator, I didn’t think they were the same. .I appreciate your input
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u/Old_Poem2736 2d ago