[Info-vax] IE8 got me too :-( Sorry Jeff.

George Cornelius cornelius at eisner.decus.org
Sat Jan 30 00:15:00 EST 2010


In article <paulranderson-1A2058.08064022012010 at news.charter.net>, Paul Anderson <paulranderson at charter.net> writes:
> Actually, the speeds were 16 2/3, 33 1/3, 45 and 78.26086957.  
                                                   ^^^^^^^^^^^

Odd.  What's this, an 1800 RPM synchronous motor with output reduced
23:1 ?

A 23 pole synchronous motor reduced 2:1?

George Cornelius

> Apparently, there was no exact standard for "78" and I always assumed 
> until looking into it today that 78 was the exact RPM.



More information about the Info-vax mailing list