3 ms·
Thought the same thing, it would have to be no?
by Jgrubb 10y ago
Thought the same thing, it would have to be no?
- dsq 10y agoYou're right, apparently not hexadecimal. I found a photo of the code thumbwheels: http://static1.businessinsider.com/image/55b7d71a371d2279018ba74e-538/screen-shot-2015-07-28-at-15549-pm.png http://static1.businessinsider.com/image/55b7d71a371d2279018...
- CamperBob2 10y agoThose were probably so-called "BCD" switches. You had four data lines because that's what it takes to represent all digits from 0-9, but not all 16 combinations could be dialed up, just 10. The result of putting N switches together in a control panel is a BCD number where N decimal digits are represented with N*4 binary lines. There are a lot of surplus BCD and other types of thumbwheel switches on eBay, but I'm not sure if they're still being made these days.