[78-L] How a Columbia Record is Made (silently)

[Royal Pemberton]

I've long been curious about that too, and those leadout grooves on
Columbias as well from c.1927 onward.  You can see the start of that on this
film, when you see the turntable move rightward for a fraction of a second.
The cutting head mount doesn't move across the wax, the turntable moves
slowly instead.

On Thu, Oct 7, 2010 at 5:42 PM, Michael Shoshani <mshoshani at sbcglobal.net>wrote:

> On Thu, 2010-10-07 at 06:34 -1000, Malcolm Rockwell wrote:
> > I really dug the flute player with the shades on... in 1928! Crazy, man!
> > A close up of the cutting head would have been nice, but all in all very
> > interesting.
>
>
> By that time they were using WE equipment. They may not have had
> permission to show a close up due to patent constraints and such.
>
> I'd love to see how spiral-outs and the eccentric groove were made.
> particularly whether the latter was cut or molded in. (This is a special
> curiosity of mine on Victor and HMV records from 1924 until the mid-30s
> or so, when the pair of eccentric grooves were different diameters
> depending on where the music ended.)
>
> MS
>
>
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