The brushes in the Ediphone motors are also brass. Basically rolled up
fine mesh brass screen. There are lots of those around. You can
motorize your decrepit Home or Triumph with one without much grief.
Makes a frankenAlva out of them.
On 11/26/2010 09:08 PM, Jim Nichol wrote:
OK, I'll do the first reply. Hundreds of us know enough about Frankenphones to
comment on them, though most of us know very little about the topics you
mentioned. But that doesn't mean they aren't fascinating:
1. Cylinder making
2. Grennet cells
3. Class M motors
Since I know virtually nothing about cylinder making, I couldn't make a good
response, like suggest a formula change. But I have posted here about how
beautiful your light-colored cylinders at the Edison Historical Site are. I was
there this summer.
I have never seen a Grennet cell in use. I couldn't name anyone who owns a
Class M. Nevertheless, I am very interested in all of those topics. Especially
the Class M motor. I'm an electrical engineer who spent a good part of my
career on starting up new DC motors and the variable speed electronics drive
controls that have been used with them since the 1960's. So, yes, I know that
brush tension against the commutator is very important. Did you say the Class M
brushes are made of COPPER? I've never seen a brush that wasn't made of carbon
or perhaps brass in very old motors. But I know wire brushes were used by
Edison and others before Frank Sprague invented the carbon brush for street car
DC series motors.
Jim Nichol
On Nov 26, 2010, at 7:55 PM, Thomas Edison wrote:
I always notice that threads about frankenphones, and non helpul stuff like
that go on forever,while. Talk about how to mold records, or how to adjust the
brushes on the governor, so there is no wow , or how to. Change the
electrolytic, sal amoniac for Grennet plunge battery for a class M get no
responses. By the way keep the contact points on the govenor clean, the copper
brushes touching with the same pressure on both sides, and make shure to keep a
little above 2 amps, at all times so the motor is strong, the few. Cass Ms I
heard were way out of adjustment, they should have no wow or flutter, they were
recording Phonographs for goodness sakes!
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