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Re: (ET) Fine control
- Subject: Re: (ET) Fine control
- From: "Bob Murcek" <rmurcek geisinger edu>
- Date: Fri, 26 Jul 2002 23:39:50 -0400
- Sender: owner-elec-trak cosmos phy tufts edu
Bill,
On my E12 the speed lever had a thin steel plate spot welded in a position
to block the top four speeds, I just chiseled this plate off. All the
switches for seven speeds were there. GE musta used the same speed
control lever assembly on all the models.
The problem with increasing the resistance of the starting resistors is
that they waste a lot of power and you'd have poor speed regulation with
respect to load...Bob
>>> <wilbett earthlink net> 7/26/2002 7:25:43 PM >>>
Bob Murcek,
Thanks for your suggestion on Fine Control. But I don't understand it.
Did you actually make 7 electrical speeds on your ET? If so, how did
you make
cams to actuate the 7 micro switches? Or did you modify the existing cams?
Or are
there un-used cam ridges in the ET which you used?
Maybe a simple fix for me would be to just make the low speed resistor
(R1) a
higher resistance. That would make the first speed slower and not effect
anything
else.
Bill Alburty