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Re: [ARSCLIST] Biltmore fans...
There are three ways record changers get triggered
1) diameter
2) increased acceleration towards the center
3) outward motion of the arm
What we need to determine the necessity of the introduction and the
change of lead-outs is a chronological listing of record changers and
juke box mechanisms and which method or methods would trigger them. For
example, there is a reason why eccentric leadouts disappeared from LPs
around 1954. There is also a reason why most record labels were reduced
in size in the mid to late 20s. And there was a reason why eccentric
leadouts were used in the first place. Although I think I have the
necessary literature on changers and the records at hand, I don't have
the time to do such as study. But it might make a good ARSC presentation.
Mike Biel mbiel@xxxxxxxxx
David Lennick wrote:
Michael Biel wrote:
Dick Spottswood wrote:
Sometimes you can spot altered lead -out grooves on pressings from
original metals.
I've seen some of them that show both the original and altered lead
out grooves in a mish-mosh, but the needle will follow the new groove
even if your eyes can't.
Mike Biel mbiel@xxxxxxxxx
Okay, what about those double lead-outs on Columbia and Brunswick LA
masters? Why was this done on virtually all of them? (Not all..I found
a pressing of "Stealin' Apples" that didn't have the extra lead-out
and thus didn't chop off the end of the last note. I think it was
"Stealin' Apples"..I'll stand corrected if it was another BG side.)
Was it because the original locked groove didn't come close enough to
the label to trip some shut-offs? In which case, why didn't it matter
that Decca stayed far from the label till about 1946? Canadian Deccas
had large labels right through that period, although the odd one had
the trip groove ending under the label.
dl