How exactly is the date code on Simplex devices supposed to be interpreted? For example, I have 2 4903-9236s, the date code on the label consisting of 3 letters. Have no idea at all how Simplex expects one to be able to know the date from just that.
I’m curious about this too, I have a 9236 with a date code of HSW.
Hate to restart old topics, but I have this question too! I am currently looking into buying a Simplex 4903-9144 with the date code JUW, and I am curious as to when it was manufactured.