If you choose to replace the DS1620 keep in mind that there are different revisions of the chip and the 'E' revision displays the temperature in larger steps than the previous revisions but the 'D' version is still pretty common and it probably doesn't make any difference other than how the Lady Heather graph will look. I'm not sure how the newer revision chips work. The DS1620 chips are fairly cheap on eBay and several sellers have them.
Check the discussion on the chips from 2010 that describes how to check the revision. https://www.mail-archive.com/[email protected]&q=subject:%22%5C%5Btime%5C-nuts%5C%5D+DS1620+Variants+in+the+Thunderbolt%22&o=newest&f=1 -Arthur _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
