[GreenKeys] What the heck is a "Selector Key"?

[Sam Hallas]

kf9nz at juno.com wrote:
>  I am sorry I have been offline for a couple of weeks and missed this
>  thread.  I am quite familiar with  60 type selectors, and can tell
>  you more than you want to know about them.

Thanks for telling us your experience with the selectors, Frank.

>  here for. Somewhere I have some original Western Electric booklets
>  that describe the system in detail.

Standard Telephones & Cables sold the system in the UK. I have their 
booklet on line at:
http://www.samhallas.co.uk/railway/stc_control.htm
with links to a complete system in Paul Wills collection and a more 
thorough description of how it works.

If your leaflet is better, I'd be pleased to receive a scan of it.
Cheers,
Sam