Re: arsclist RE: 78 Rpm Record Spindle Holes

["David S Sager" <dsag@xxxxxxx>]

I think Mr. Smolian has the right idea, stack up a bunch of pads, or
even records to clear the spindle and re-center the offending disc and
adjust the tonearm.  Drilling out a record should only be done if it is
the engineer's property!  

DS  

>>> parker@xxxxxxxxxxxxxxxxx 11/21/02 10:14PM >>>
on 11/21/02 7:33 PM, Audio101 wrote:

> I want to make a product that archivist will find useful and yet be
> reasonably priced. Speak up now, would 249.95 be too expensive if we
> could machine the shaft completely flat with the platter and then
have a
> piece that would slip into the shaft for normal records? I could
offer
> this as an option.

Dave - 

It may just be us, but we drill out holes in 78s when necessary. This
has
the additional advantage of being able to center the disks better.
Negative
metal parts like stampers are often **way** off center, and it helps to
open
the holes to center them individually.

It doesn't take long to do this.

Btw, we are getting a steady signal at +/- 17.7kHz on our SP-15 via
the
phono cartridge - it's probably part of the quartz/motor drive speed
servo
circuits. It's not audible at the levels it occurs, but it would be
more
assuring if it were eliminated with shielding or filtering. We've been
able
to notch it out with a Weiss EQ1-LP.

Later. Parker

---
Parker Dinkins
MasterDigital Corporation
CD Mastering + Audio Restoration
http://www.masterdigital.com 


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