[Vintage-Audio] Help! Sony Turntable Croaks!

Mon Jul 15 20:29:00 2002

Phil, 	

I am sure you are correct. However, this belt is soft and pliant, no indications
of breakdown. Still appears good. This turntable was used three days ago and ran
fine. I think it came off something somehow. Just now sure what.	

----------
From: Phil <[email protected]>
To: [email protected]
Subject: Re: [Vintage-Audio] Help! Sony Turntable Croaks!
Date: Monday, July 15, 2002 6:08 PM

Duane
It is not unusual for a belt to stretch out Way to long like that.  What
happens is the belt becomes very soft and stretchy.  then if it sits for
awhile it sticks to the platter.  When you turn it on the belt sticking to
the platter will be stretched as the motor pulls on it.  Sometimes the belt
will wind itself around the motor pulley a gazillion times and then break.
You're lucky that this happened when it did.  The next step in belt
degradation is the entire belt dissolves into ooey, gooey sticky tar and
sticks to everything it touches, including your fingers.  At that point it
can be a real mess to clean up.

I see this all the time on old turntables and cassette decks.

Phil  KO6BB

> 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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