[AT] OT:(now tv)

Cecil Bearden crbearden at copper.net
Mon Jan 30 17:01:48 PST 2006


Ken
I have one of those 400 cycle motor generator sets on a trailer.  It is a 
75KVA unit.  It used a constant speed 100 hp motor.  The motor was at a 
friends place to sell and he let it go to the junk man for $100 2 months 
ago.  I still have the generator though....

Cecil in OKla
----- Original Message ----- 
From: "ken knierim" <wild1 at cpe-66-1-196-61.az.sprintbbd.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Sunday, January 29, 2006 3:09 PM
Subject: RE: [AT] OT:(now tv)


>
> Hi Larry,
>   I considered trying to put in some FET components to replace the
> tubes on some of the sections but after taking an oscilloscope after the
> system when it was operating on the test stand, I decided there was no
> way I wanted to touch it. The system was working in spite of all the
> problems I saw. The test stand had a bunch of 60+ year old
> potentiometers, motors and touchy wire connections. The signals were
> cutting out and cutting in and while the system had some overshoot, it
> WORKED! I realized that "fixing" something that wasn't broken was not a
> good plan.
>    Instead we put new components in, put in a new transformer and fuse,
> cleaned up the original connectors and tested them. Some of the tubes
> are original; the boxes look like they are from the 50's but they test
> good and don't appear to be damaged or leaky, we have been instructed to
> use them (though we've recently told them that it would be rather
> inexpensive to put in new from the start). Also in the works is an
> overhaul of the rest of the system; the wiring has been replaced on the
> aircraft but the wear components need to be addressed, and we're working
> on that. It should be like new when we get done with all the work, which
> is the plan.
>    Another note was that these parts were originally made by Honeywell.
> I knew my neighbor (also named Ken) had worked there and had designed
> and built gyroscopes for them. I showed one of the original amplifiers
> to him and it got a big smile out of him... he started telling me about
> the guy that designed them originally. It's a small world.
>
> Now if you still have that motor/generator for making 400 cycle 110 volt
> power, I would have some interest in having that around for testing
> these parts before they leave my shop. Presently I have to go to the
> customer's site to use their test equipment and it would be nice to do
> that in-house. I've seen them on quite a number of aircraft but haven't
> been able to score one yet.
>
> Ken
>
>
>
> On Sun, 2006-01-29 at 12:11, Larry D. Goss wrote:
>> You made my day, Ken.  My Dad designed some of that stuff.  The
>> supercharger plant was a separate production facility of GE out on
>> Taylor Street in Fort Wayne.  Dad spent a lot of time between there and
>> the Broadway plant during the war.  The whole plant has been shut down
>> and mothballed for years.  He really lamented the changeover to
>> semi-conductors in the early 50's because the response curves just
>> weren't as predictable and smooth as the vacuum tubes he had been
>> working with for years.  It seems to me I remember that most of that
>> stuff operated on 400 cycle AC.  We had one of the 400 cycle
>> motor-generators setting on the floor of the shop for years.  I don't
>> know why Dad ever brought it home because we had nothing on the farm
>> that we could use it for.
>>
>> Larry
>
>
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> Remembering Our Friend Cecil Monson 11-4-2005
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