Re: [Phono-L] Columbia Grafonola - electric motor question

2019-11-06 Thread Robert Wright via Phono-L
Anyone? No one here knows about these Columbia electric motors? I would be shocked if that were true! On Oct 25, 2019, at 5:35 PM, Robert Wright via Phono-L wrote: > Hello, all! Got a question on behalf of a lovely couple I get this weekend > regarding a big, beautiful Columbia

Re: [Phono-L] Columbia Grafonola - electric motor question

2019-11-06 Thread SN Medved via Phono-L
I saved the photo because I had never seen or heard of one. From: Phono-L on behalf of Robert Wright via Phono-L Sent: Tuesday, November 5, 2019 3:38 PM To: Antique Phonograph List Cc: Robert Wright Subject: Re: [Phono-L] Columbia Grafonola - electric motor

Re: [Phono-L] Columbia Grafonola - electric motor question

2019-11-06 Thread Greg Bogantz via Phono-L
    Ron has a good point. Most of the early electric motors that were used in the first electrified phonographs were of the "universal" type.  I seem to remember seeing this type in the early Columbia electrics. Meaning they had windings of wire in both the armature and in the stator magnets. 

Re: [Phono-L] Columbia Grafonola - electric motor question

2019-11-06 Thread Ron L'Herault via Phono-L
You should be able to figure out what connects to what with visual inspection and a meter that measures continuity. Most of the old motors went through some kind of resistance device, a long coil of wire on a ceramic tube, for instance, as a way of controlling voltage. You may want to submit

Re: [Phono-L] Columbia Grafonola - electric motor question

2019-11-06 Thread Peter Fraser via Phono-L
I know enough about them to use one to shock you... But seriously if you can send a good bunch of pictures some of us might be able to help. Wires and the location where they connect, jacks or connectors, switches, any labeling or badges, etc. Sent from my iPhone -- Peter pjfra...@mac.com >