24 Nov
2007
24 Nov
'07
7:47 p.m.
On 24 Nov 2007 at 19:27, dwight elvey wrote:
75 is a lot of bands. I'd think that it would
need to be a larger
disk. Still 45 for a 60 Hz would be 90. Are you sure your not
thinking of 33 1/3. That is a lot tougher or 78.
Dwight
I'm certain--have a look:
http://www.extremephono.com/free_turntable_strobe_disk.htm
Note that the 50Hz disc is 45.11 RPM
Cheers,
Chuck