Mick, you forget the GE 17KM3A1 remote controller used on the Brooklyn PCCs which was standard till 1940. I cannot translate the
coding of 17KM3A1. Clues may be that the remote controller used on the ERPCC "rolling Laboratory" was a 17KM1A1, which was a
series-parallel unit. "Similar series-parallel units were manufactured for the Chicago Surface Lines car 7001, the ERPCC Model B
laboratory car 5300 and a Budd-built multi section subway-elevated train for Brooklyn." The 17 KM1B1 controller "used on the
Brill-Chicago experimental car of 1934 was a series-parallel unit similar to the unit tested earlier on the ERPCC laboratory car.

When PCCs went all electric - 100 trams for St Louis - GE had to revamp the controller system and simplify it, and the new
controllers were the 17KM12 version. "Baltimore, Cincinnati, Philadelphia and Washington bought parts to convert all of the 17KM3
units on previously purchased cars to the 17KM12 version."

Info from "PCC the car that fought back".

Regards

Dudley Horscroft
----- Original Message -----
From: "Mick Duncankitbuny@... [TramsDownUnder]" TramsDownUnder@...>
To: TramsDownUnder@...>
Sent: Monday, April 24, 2017 8:13 PM
Subject: Re: [TramsDownUnder] GE's first project in Australia

> Gday Richard, All

>

> The only GE remote controls that I know of is Type"M" manual or auto

> acceleration, 5 series and 4 parallel,trams and sparks.

>

> Type "M" is electro magnetic and PC gear is Electro Pneumatic

>

> PC5 auto acceleration,5 series ,4 parallel and PCM, 9 series,9 parallel

>

> There was also PC 6 and PC9 for railways,basically the same as PC5,but

> with heavier electrical gear

>

> Cheers, Mick

>

> On 24/04/2017 2:14 PM, Richard Youltressteleg@...

> [TramsDownUnder] wrote:

>>

>>

>> Quite an interesting story. No doubt GE found the Sydney tramways also

>> to be quite profitable with various types of remote control and

>> automatic acceleration equipment used on trams, particularly the O and

>> P classes.

>>

>> There are probably members of this group who follow electro pneumatic

>> control gear closer than I do and are familiar with the various types

>> produced by General Electric.

>>

>> While the Sydney P class used PC5 (I think), I am currently preparing

>> a video on the Hershey interurban line in Cuba. On one ride the PC

>> control on a Brill car failed and I am wondering whether anybody knows

>> what type was used on those Brills. It looked bigger than what is on a

>> P. A photo from the video could be supplied.

>>

>> A search of the Internet to date has revealed nothing on GE control

>> gear, let alone what was used in Cuba.

>>

>> Regards,

>>

>> Richard

>>

>

>