[78-L] Durium Hit of the Week 'Hoard'

[David Lennick]

Steven C. Barr wrote:
> ----- Original Message ----- 
> From: "David Lennick" <dlennick at sympatico.ca>
>> A weight at the center won't help much if the disc is seriously warped at 
>> the
>> edges.
>>
> NOT entirely true! Since HOW's & such usually "warp" along one axis (the
> paper expands with dampness, while the plastic coating DOESN'T!)...
> forcing the centre downward will, at least temporarily, UNwarp the disc...
> at least long enough to be played and recorded! It is only the thin plastic
> (Goodson, Phonycord, usw.) records that show warpage in complicated
> patterns...this most probably explains the short lives of the companies
> which sold such phonorecords...?!
> 
> Steven C. Barr 
> 

The most difficult Durium product to flatten was one of those 4-inch discs, 
probably the Chevrolet ad. I finally took an old rubber reel holder from a 
reel-to-reel recorder (Ampex used them but Radio Shack made reasonable 
facsimiles) and trimmed it down to less than "label" size where it wouldn't 
interfere with the stylus base. Those things weren't so difficult to play with 
steel needles, but modern equipment doesn't like to deal with bumps and raised 
matrix numbers and things of that ilk.

dl