[78-L] a shuddering stylus

[David Lennick]

> From: julianvein at blueyonder.co.uk
> To: 78-l at klickitat.78online.com
> Subject: Re: [78-L] a shuddering stylus
> 
> Malcolm Rockwell wrote:
> > Has anyone else besides me noticed a little shudder of their tone arm 
> > once a revolution on some pressings? It's especially prevalent at the 
> > outside edge of indy 1950s issues, but not limited to them and can cause 
> > the stylus to jump out of the groove in some instances. In fact I 
> > recently received an RCA-Victor record with this problem. It seems to 
> > disappear the closer to the center of the disc the groove is.
> > I believe it's due to an unbalanced (or badly lubricated) lead screw, or 
> > possibly a bad bearing at the outer end of the lead screw on the disc 
> > cutter.
> > Any other ideas?
> > Mal
> > 
> > _______________________________________________
> Sometimes a change of stylus tip size alleviates the problem.
> 
> Julian Vein
> 

As does taping a Dominican Republic half dollar to the cartridge shell. That sucker ain't gonna leave the groove nohow.

 

dl