[PRCo] Re: PCC development

[Boris Cefer]

It looks that the early GE series did not differ from each other. At least
1000s and 1100s. But the el-air-oil powered commutator controller was crazy
enough!

B

----- Original Message -----
From: "Fred Schneider" <fwschneider at comcast.net>
To: <pittsburgh-railways at dementia.org>
Sent: Saturday, October 22, 2005 5:20 PM
Subject: [PRCo] Re: PCC development


> Plus the General Electric variants.,
> On Oct 22, 2005, at 10:49 AM, Boris Cefer wrote:
>
> > I am just trying to spend some time in PCC electrical drawings.
> > With the recent PTM roster update, one might be curious what the
> > actual connections (except the recently added b-u controller) in
> > the 1138 are.
> > At the beginning, there were three (3) electrically different
> > groups of PCCs:
> >
> > a) 100, 1000-1074 except 1054
> > b) 1100-1154 and 1054
> > c) 1155-1174
> >
> > The drawings and other stuff that I collected also here (dating
> > from 1939) indicates more changes within 1939 than we can imagine.
> > There is no drawing for the series 1100-1154 and 1054, which would
> > include also the 1138, but there were obviously extensive
> > improvements.
> >
> > This does not reuire any response, just an attempt to put some
> > light on the subject.
> >
> > B