[78-L] How to keep 78s warm in a cold snap

[Glenn Longwell]

Exactly.  Different rates of thermal expansion on both sides.  It's fortunate it returned to its original state.
With regards to records in garages, etc. I brought home a collection of over 8000 discs that were in an unheated shed and garage for the past 20 years before the estate sale the family had to clear out the house, shed and garage.  So they saw both heat and cold and they are fine.  The downside was probably the heat, not the cold.  When 78s are stored on an angle and they get warm they can warp pretty easily.  So I've been faced with flattening a bunch of records.  Regardless, sound quality is fine and seemingly no ill effect from the years in the shed/garage.  As others have pointed out, it's dampness which will be the bane of the quality of the disc.  If they get damp they'll get a grainy surface, if not mold which will cause more problems.
Glenn

--- On Thu, 1/24/13, Ron L'Herault <lherault at bu.edu> wrote:

From: Ron L'Herault <lherault at bu.edu>
Subject: Re: [78-L] How to keep 78s warm in a cold snap
To: "'78-L Mail List'" <78-l at klickitat.78online.com>
Date: Thursday, January 24, 2013, 9:03 AM

My guess is that the underside expanded faster than the top. 

Ronald L'Herault

Lab Supervisor, Biomaterials Division
B.U. School of Dental Medicine
801 Albany Street S203
Roxbury, MA 02119



-----Original Message-----
From: 78-l-bounces at klickitat.78online.com
[mailto:78-l-bounces at klickitat.78online.com] On Behalf Of David Weiner
Sent: Wednesday, January 23, 2013 10:33 PM
To: 78-L Mail List
Cc: JAZZ LIVES
Subject: Re: [78-L] How to keep 78s warm in a cold snap

Think I've told this story before, but what the heck. Back in the late 70s,
I subbed as host for Rich Conaty's BIG BROADCAST show at Fordham U several
times; one especially cold winter night, I had already done a three-hour
radio show at Hofstra U and then drove up to the Bronx for another three
hour program, with the discs sitting in the trunk of my car all afternoon
and evening. When I got to the Conaty show, one of the first records I
pulled was a super-thin Dynaflex Paul Whiteman LP from the RCA Vintage
series. To my horror, when that cold platter hit the warm turntable mat, it
immediately and completely folded up like a tulip! After a few seconds,
thankfully, it began to slowly return to normal and settled down flat.
Wonder what the scientific explanation for that is?

Dave Weiner

On 1/23/13 10:22 PM, "L78rpm at aol.com" <L78rpm at aol.com> wrote:

>Hundreds of discs in my "secondary" collection, accumulating and stored 
>in my finished basement for years, are now in my unheated garage.  The
>reason:  Sandy the Storm left seven feet of water in my basement, 
>rising to within three inches of my living quarters.  Everything there 
>was destroyed;  but during the necessary cleanout/cleanup I did manage 
>to get most but not all of the 78s out and into the garage.  (The discs 
>I consider important are
>elsewhere.)
> 
>I decidedv that the best thing to do was to get them out of their wet 
>sleeves and albums and dry them off.  (The wet paper holding them went 
>out  to
>the curb.)   I did manage to do this.  My understanding is  that dry 78s
>can
>withstand cold as long as they are not exposed to  moisture.  They will 
>be there all winter.
> 
>In the spring I will determine whether I am correct.
> 
>Paul Charosh
> 
> 
> 
>In a message dated 1/23/2013 5:57:42 P.M. Eastern Standard Time, 
>dlennick at sympatico.ca writes:
>
>Follow-up....customer was very pleased. I used an insulated pizza 
>pick-up bag and kept the item under an emergency blanket in the car for  
>the hour when I had to leave it parked. Since it was the Carl Kress 
>Decca  set, I didn't want to run the risk of extreme cold doing  
>anything.
>
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