Thread: Phono motors
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Old January 27th 09, 06:15 AM posted to alt.binaries.pictures.radio
Lynn Lynn is offline
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First recorded activity by RadioBanter: Nov 2007
Posts: 34
Default Phono motors (spring on shaft)


"Jim Mueller" wrote in message
...
Lynn wrote:

"WW" wrote in message
...
Any one need these? Warren


I don't need any (now) but was tossed back half a century when
I saw the coiled spring-like bushing on the motor's shafts. I think
when you bought a 50 cycle player you got a little package with
one of those springs to convert the player to 60 cycle.

OR, was it just the other way around?

Old Chief Lynn


Many motors have those normally. It's just a way to get the right size.
Note that the second motor, P1241826-1.jpg, only has the bushing on the
78RPM step of the shaft. The 45 and 33 1/3 RPM steps are bare.

On 50Hz the motor would run slower so the shaft would have to be larger to
get the same turntable speed. The adapter would be used for 50Hz
operation.

--
Jim Mueller


Right on! And I had forgotten about the 3 speed changers with a single speed
synchronous motor. My (our) first suitcase style player had such a motor.
The player is long gone, but still have a couple scratchy 33 1/3's... I
think
Bill Haley... Shake, Rattle & Roll?? is one.

Old Chief Lynn