Before AT&T shuts off my Usenet access, I'll get in my one last question and hopefully someone can help.
Scott 558T digital AM/FM tuner, bought in October of 1983 but probably built a year or two before. It doesn't remember station presets anymore when switched off. I looked inside briefly for a coin cell battery or large capacitor but nothing caught my attention. How did digital electronics of this age remember things when switched off?
Thanks all.