On 3/9/2011 6:15 PM, Dan Nelson wrote:
> So true but the World laterals were later releases when many stations no longer had RCA or Gates turntables with lat/vert heads.
Nope. I am talking about the 1930s BEFORE RCA made their 4875
three-ribbon Universal tone arm and when Gates only had lateral pickups
on their turntables (I have their 1935 catalog). RCA did make a
separate arm, the AZ-4217-2 that could play verticals and you could
attach it to the rear side of the turntable cabinet of the 70-A and 70-B
tables. The lateral AZ-4211-2 arm came mounted on the right side of the
cabinet. Stations with World licenses would use the ERPI tables which
were essentially those removed from Vitaphone projectors with Western
Electric 5A replacement arms for vertical or the original 4A for
> Tone arms like the GE transcription arm with GE VR cartridges were the first attempts to up grade to higher fidelity and lighter tracking in going to LP formats thus replacing the older heavy transcription arms.
Not true. RCA immediately came out with a very slim lightweight tone
arm, MI-11885, to be installed alongside the RCA 4875 universal arm on
70-C and -D tables, and came standard on 70 E.
World started with lateral transcriptions around 1930, added vertical
around 1932 and continued to offer both until they dropped vertical in
the early 50s and went microgroove.
Mike Biel [log in to unmask]
> --- On Wed, 3/9/11, Michael Biel<[log in to unmask]> wrote:
>> From: Michael Biel<[log in to unmask]>
>> Subject: Re: [ARSCLIST] Turnover and rolloff curves / Decca vertical
>> To: [log in to unmask]
>> Date: Wednesday, March 9, 2011, 11:33 AM
>> On 3/9/2011 1:50 PM, Dan Nelson
>>> Decca used the WE vertical mastering after they
>> bought World Broadcasting transcription
>>> World used Western Electric vertical cut disc for all
>> their broadcast transcriptions because of its broader
>> frequency response at the time over lateral discs.
>> Actually, not all of the World discs were vertical.
>> Many were also
>> available as laterals. The verticals had red labels
>> and the laterals
>> had green labels.
>>> The vertical cut discs also were less prone to pick up
>> surface scratches.
>> Until the mid-30s they also offered their pressings on
>> either stiff
>> vinyl or very floppy clay colored acetate -- real acetate,
>> misidentified lacquer -- this is the reason why so many
>> radio people
>> incorrectly call lacquers acetate. You need to
>> occasionally check the
>> World acetates to make sure they don't smell vinegar.
>> I've never come
>> across a clay colored one that smelled vinegar but I have
>> smelled it on
>> clear and blue ones. (Lacquers are cellulose nitrate,
>> by the way, and
>> if you call them anything but lacquers you could call then
>>> I have many of the World transcriptions and they are a
>> joy to listen to
>> I have a pair of test pressings of a 1935 program, one a
>> vertical and
>> the other a lateral of the exact same "take" of the
>> program. The
>> lateral is very good but the vertical is FANTASTIC.
>> Especially as it
>> reaches the outer edge at the end of the program, the sound
>> quality of
>> the Graham McNamee announcement is breathtaking -- and I am
>> no fan of
>> McNamee. World and WE was claiming 13,000 and 14,000
>> cps. top ends as
>> early as 1932 and 33.
>> Mike Biel [log in to unmask]
>>> --- On Wed, 3/9/11, George Brock-Nannestad<[log in to unmask]>
>>>> From: George Brock-Nannestad<[log in to unmask]>
>>>> Subject: Re: [ARSCLIST] Turnover and rolloff
>> curves for correct playback of 78 rpm records!
>>>> To: [log in to unmask]
>>>> Date: Wednesday, March 9, 2011, 10:32 AM
>>>> From: Patent Tactics, George
>>>> Hi Mike,
>>>> your last statement
>>>>> Decca was using the Western Electric Wide
>>>> Vertical Recording
>>>>> system during the 1943-48 era.
>>>> points to something I have suspected, however I
>> have no
>>>> source to confirm it.
>>>> Do you have somewhere I could look?
>>>> Best wishes,
>>>> Mike Biel [log in to unmask]