[Vintage-Audio] Help! Sony Turntable Croaks!

[Bob]

Well I find a FRM-10.5 and a FRM-12.7 that are 0.210 x
0.031.and a FRM-9.6 which is skinny. I can tell which one
with the model number. But there is hope that the 13 inch
you measured is OK and you just gotta figure out where it
goes.

WBob

"Duane Fischer, W8DBF" wrote:
> 
> Bob,
> 
> This belt is about .25 wide and has a diameter of 13 inches.
> 
> It does not fit around the underside of the rim of the platter, but on a smaller
> circle about two thirds the size of the platter.
> 
> Is the speed changed by the belt being moved by these mechanics or by the speed
> of the motor changing? The buttons do raise a piece of metal higher when the
> speed changes from 33 1/3 to 45 rpm. Can't see how that would take up much
> tension though.
> 
> As soon as somebody is here who can see to read, I will check the plate on the
> back for a model number. There is nothing obvious, as I had someone check
> before.
> 
> Duane
> 
> 
> ----------
> From: Bob <wolfbob@csnsys.com>
> To: vintage-audio@mailman.qth.net
> Subject: Re: [Vintage-Audio] Help! Sony Turntable Croaks!
> Date: Monday, July 15, 2002 5:56 PM
> 
> Duane..
> 
> Cant find any Sony TT with numbers like that. If it is a rim
> drive belt odds are it is a FRX-23.6 a flat belt 23.3 x
> 0.185 x 0.030 inches. That belt is pretty skinny, 0.185,
> most TT belts are 0.25 or so. Sony had a lot of
> combinations, but the FRX-23.6 was the most common long
> belt.
> 
> WBob
> 
> "Duane Fischer, W8DBF" wrote:
> >
> >
> > Today I went to play an album and the Sony turntable was not working. Worked
> > just fine a few days ago. Hmmm. Platter was not moving. So the old blind dude
> > stupidly stuck his left index finger in one of the three large holes in the
> > heavy metal platter and 'looked' around.
> >
> > If the new antibiotic Lebaquin for an UTI disagreeing with me was not enough
> to
> > make me miserable,  I discovered that the drive shaft was still turning in the
> > turntable! Darn near drilled a hole in my Braille finger. I also noted that
> the
> > belt was off. So I powered it down and removed it from the console.
> >
> > The belt is not broken, seems pliant, but is way too long. I mean, three
> inches
> > too long. This is not just a case of stretched, as it could not possibly have
> > run the last time with a belt that was this sloppy. Now I reason there must be
> a
> > tension adjustment for this belt, but i sure can not find one.
> >
> > Do any of you have any suggestions? This turntable I purchased new in 1974. I
> > did replace the belt about eight years ago. It has had some use each month.
> >
> > The only number I have written down is MD 88858.
> >
> > Duane W8DBF
> >
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