[78-L] 17 1/2" transcription blanks

[David Lennick]

February 1949, no? Interesting to note that several early RCA lps have D- 
(1949) prefixes, so they were obviously preparing to "join 'em" before 1950.

dl

On 7/29/2012 12:10 PM, David Weiner wrote:
> And I just got several early  RCA 45 7-inch master tests that were cut on
> 10-inch blanks, dated December 1948.  When were the first 45s issued?
>
> Dave Weiner
>
> On 7/29/12 11:34 AM, "David Lennick"<dlennick at sympatico.ca>  wrote:
>
>> These were required for cutting a 16-inch master from which pressings
>> were to
>> be made, leaving room to handle the disc when processing. Oversized discs
>> were
>> also used for 12" and 10". I have a 14" disc that contains a 10-inch
>> 78RPM
>> master, dating from about 1947.
>>
>> dl
>>
>> On 7/29/2012 11:27 AM, Dennis Flannigan wrote:
>>> Just noticed, my blank transcription discs are 17&   1/2 inches across.
>>> Is
>>> this a particular brand, and where they used differently than the 16"
>>> discs?
>>>
>>> Thank you,
>>>
>>> df
>>> ________________________