[Richard]

The point that Jack and i are making is that at some point in time the HWH circuit boards may become unobtainable. There are reasonable solutions out there to control these basic systems. In today’s “maker” world of programmable Arduinos and Rasberry Pi computers along with the ready made relay and input add ons, it is possible to replace the hardwired circuit boards in many control systems.

I first became interested in this when figuring out different ways to work around the unobtanium SCS boards. The availability of industrial versions of the Arduino and Rasberry Pi lead to robust control systems. I was amused to learn that Marathon has a Rasberry Pi under the bed which is used to read all the signals from the monitoring systems and convert them into video displays.