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Michael, are you saying that 78s manufactured in Europe play at a different
correct speed than 78's manufactured in the US?  I have never heard
anything like that before.

Best,
John



On Mon, May 1, 2017 at 9:48 AM, Michael Shoshani <[log in to unmask]
> wrote:

> Hi Gary,
>
> While the KAB Speed Strobe works independently of the power line frequency,
> and thus works equally well in 60 Hz and 50 Hz countries in theory, I would
> submit that in practice it is still geared to the speeds provided on 60 Hz
> turntables, which means that electrically recorded 78s from Europe will be
> off.
>
> Its specs indicate 78.26 for 78rpm, which is the 60Hz standard;
> Electrically recorded 78s from countries where 50Hz is the power frequency
> are recorded at 77.92 RPM.  Anyone in the UK or Europe, for example, who
> uses the SpeedStrobe to set their turntables at 78, will be playing their
> locally manufactured records at a speed 0.44% faster than they should be -
> a slightly greater pitching error than the 0.42% Caruso one.  (The
> SpeedStrobe does not offer 77.92, which seems an amazing oversight for a
> product intended for worldwide use.)
>
> Michael Shoshani
> Chicago
>
>
> On Thu, Apr 27, 2017 at 2:40 PM, Gary A. Galo <[log in to unmask]> wrote:
>
> > Hi George,
> >
> > Following Aida Favia-Artsay, the difference between 76.60 (60Hz) and
> 76.92
> > (50Hz) is 0.42%. This is an unacceptable pitching error. Are you telling
> me
> > that every 76.6-rpm Caruso record pitched using her 50 Hz strobe will be
> > 0.42% off?
> >
> > It would seem that, for turntables lacking a digital readout, a sensible
> > solution is KAB's Speed Strobe:
> >
> > http://www.kabusa.com/strobe.htm
> >
> > The Speed Strobe comes with its own LED lamp, which is illuminated with a
> > quartz-locked AC signal. Therefore, it is not dependent on the power line
> > frequency, and will work equally well in 60 Hz and 50 Hz countries.
> >
> > Gary
> >
> >
> >
>