Posted by Jock on September 01, 2006 at 21:17:32 from 87.105.81.146 user Jock.
In Reply to: Re: Kings & Wheeltapper codes posted by Owen Roberts on September 01, 2006 at 11:21:02:
I can only say that you have not been in an old fashioned british railway signalbox recently.
Ah the joy of British bell codes. But wheeltap 4-cylinder is usually interpreted by hardware, before progressing to the man-machine interface.