That's an interesting method of driving the anodes. W dniu piątek, 8 września 2017 15:12:38 UTC+2 użytkownik Robert L napisał: > > Complete 73 issue from July 76... See here: > > > https://ia902601.us.archive.org/31/items/73-magazine-1976-07/07_July_1976.pdf > > Caution... thread drift... > > Found the clock in the attached image on the local Craig's List back in > April... Seller and I each traveled a couple of hours to meet at the > farthest North BART station. Fun day... > > Rotary switch on the back of the clock has three positions... "fast > forward", "slow forward", and "keep time". Time is derived from the 60 Hz > line frequency. Could well be the same circuit from 73 Magazine. Can't > bring myself to harvest the tubes! > > 73 de Bob >
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