I'm not familiar with this type of Columbia electric motor, but it
sounds like it may be a variant that includes the Columbia "non-set
auto-stop" mechanism that was used on the more expensive spring motor
models. I have a Columbia electric motor model, but the switch mechanism is
simple and is merely coupled to the tonearm by a lever. Some of our readers
have probably worked on the non-set auto-stop spring motors and can perhaps
help you to figure out how it works. It's a clever design and somewhat
complicated. I don't know if there is any documentation available on how to
service these, but it would be a valuable addition to the phono literature.
Greg Bogantz
----- Original Message -----
From: "Daniel Melvin" <[email protected]>
To: "[email protected]" <[email protected]>
Sent: Monday, December 21, 2009 11:47 AM
Subject: [Phono-L] Columbia Grafonola Electiric motor shutoff question
Does anyone have any information on the rather complicated
geared switch mechinism on an electric Columbia motor? I have a machine
where that mechinism seems to have frozen up which was keeping the motor
from running. I took it apart and stared at it quite a lot and cannot even
figure out how it works. It has a bunch of gears and a cam that turns the
motor off and on.
To get the machine working I disconnected the gear attached to the tonearm
and rigged a manual switch for the motor. It works great, but I would
really
like to restore the original switch mechinism if anyone has suggestions or
information on it. I have all the original parts, but the switch lost me
in
the dust.
And, I thought Edison made complicated machines! This switch is amazing.
Thanks
Dan
_______________________________________________
Phono-L mailing list
http://phono-l.oldcrank.org
_______________________________________________
Phono-L mailing list
http://phono-l.oldcrank.org
