Yes. What do you think proportional means?
The arm carriage will move across the record of it's own accord In @ 20 minutes (assuming correct adjustment) if the needle is lifted out of the groove.
An ST7 dropped into my lap about three years ago. It is what it is, neither a spectacular deck nor a terrible one. Once you've had the, er... "pleasure" of setting one up you'll understand why later manufacturers dropped that linear tracking scheme like a red-hot stove in favor of servo drive.
My impression was that it wasn't particularly robust once adjusted, either. To say that f**ting in its general direction would knock it out-of-whack is only slight hyperbole. Perhaps it worked much better when new and that the then-current performance had been compromised by the age of the rubber components, different lubrication, etc. I really don't know. The Rabco arms do have their followers though, and each system and its environment is different - so maybe there's something I'm missing.
I had fun messing about with it, but at the end of it all I came to realize that I'd experienced vastly better performance from my "conventional" turntables. Your mileage may vary, etc. & etc...
My impression was that it wasn't particularly robust once adjusted, either. To say that f**ting in its general direction would knock it out-of-whack is only slight hyperbole. Perhaps it worked much better when new and that the then-current performance had been compromised by the age of the rubber components, different lubrication, etc. I really don't know. The Rabco arms do have their followers though, and each system and its environment is different - so maybe there's something I'm missing.
I had fun messing about with it, but at the end of it all I came to realize that I'd experienced vastly better performance from my "conventional" turntables. Your mileage may vary, etc. & etc...
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I agree with your findings, and will add that that "type" of design didn't last long.
And indeed, the change to electronically-maneuvered linear arms is miles ahead in performance, stability, and reliability.
My Kenwood only needed a new cartridge in all the years/decades that I've owned it, it never gave me grief.
Of course, I did provide some pro-active maintanance to insure peace-of-mind for decades to come.
And indeed, the change to electronically-maneuvered linear arms is miles ahead in performance, stability, and reliability.
My Kenwood only needed a new cartridge in all the years/decades that I've owned it, it never gave me grief.
Of course, I did provide some pro-active maintanance to insure peace-of-mind for decades to come.
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That's f..g genious.Thank you for sharing the idea.Never heard about it before.