“…just as God intended!”
~ Buster Hughes, referring to an e/m controller running the signals at a Baltimore intersection
While some of my signals are running nicely on hobby circuit board controllers – Sean Breen in Canada being my favorite provider of these – there’s something special about the look and sound of an electro-mechanical (e/m) controller. These old devices use outdated but fascinating technology, implemented in a variety of ways, to run signals. Here are the e/m controllers that I have owned.
1960s Eagle EF-20
In June 2019, after five years without hearing that familiar “ker-chunk” of an e/m controller in my collection, I acquired a working 1960s Eagle EF-20 put together from parts by Andrew Brent in Ohio. The controller unit itself (the pale green box with the timer dial window) was legally procured years ago from Lewiston, Idaho surplus by a signal technician/collector in the Pacific NW.
The controller was sold to me already configured for two-way vehicular and pedestrian motion with solid-state flash, so my tasks were simply to wire the signals and power chord to the back panel and to paint the cabinet. I brushed on Sherwin-Williams Ripe Olive Green in satin.
== Youtube video of the EF-20 in action ==
2000 General Traffic Equipment (GTE)
The previous e/m controller I owned was a General Traffic Equipment (GTE) controller built in 2000 that was retired from Brooklyn, NY. I picked this one up from the GTE warehouse in Newburgh, NY in 2012. Steven Gambara helped me set it up. I have posted some Youtube videos of this controller, linked below:
1993 GTE Model B3
My first controller was a GTE Model B3 controller made for New Orleans in 1993. This manufacture date came as a surprise to me – up to that time, I had assumed that e/m controllers ceased to be manufactured sometime around 1970. I acquired this controller from a very nice collector who shipped it to me from Louisiana in 2003. I had it running my lights when my kids were just little tots playing around them in the basement…great memories!
The highlighted detail in the photo on the left is a mechanical flasher with two fingers for alternate flash. It was kind of interesting that such a new controller still used this sort of mechanism rather than a solid state flasher.