[78-L] Glass versus Vinyl

[Milan P Milovanovic]

It is interesting to point out that kind of PVC is the coating of so called 
Decelith media.
----- Original Message ----- 
From: "David Lennick" <dlennick at sympatico.ca>
To: "78-L Mail List" <78-l at klickitat.78online.com>
Sent: Thursday, January 06, 2011 4:35 PM
Subject: Re: [78-L] Glass versus Vinyl


> Two things are being intermixed here..glass replaced aluminum when it 
> became
> unavailable during the war. Vinyl was used for pressings, and rarely for 
> discs
> sold to consumers until it was economically feasible to use it and pickups 
> were
> lighter by the mid 40s. I've seen vinyl soft cuts from the fifties and I 
> think
> that's what's used today for "dub plates" but can anyone comment on the 
> quality
> of the 50s vinyl soft cuts? Noise level? Frequency range? Durability?
>
> dl
>
> On 1/6/2011 10:29 AM, marimbamoods at comcast.net wrote:
>>
>>
>> just wondering - why were lacquer-coated glass-based transcription discs 
>> used well after the introduction of vinyl?
>>
>>
>> i recently encountered a damaged glass-based disc from 1945, though vinyl 
>> discs were in use as early as ten or more years prior to that. given the 
>> fragility of the glass type, why were those manufactured at a time when 
>> vinyl was readily available?
>>
>>
>> are the lacquer-coated surfaces somehow superior to the vinyl surfaces 
>> for fidelity or noise levels? that does not seem likely given the 
>> smoothness of vinyl, which continued in use for a half-century after its' 
>> introduction.
>>
>>
>> so, why deal with the delicate handling issues of glass-based discs when 
>> hassle-free vinyl was already in use?
>>
>>
>> best, david harvey
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