My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on. Submitted by Iain_MS t3_z84a06 on November 29, 2022 at 7:58 PM in mildlyinteresting 91 comments 197
_thankyoucomeagain_ t1_iybcyuz wrote on November 30, 2022 at 3:15 AM Reply to comment by slade797 in My thermostat uses the expansion/contraction of a drop mercury to conduct electricity and trigger when to turn off and on. by Iain_MS Seen very few digital but the do exist. I just repair them. What do I know. Permalink Parent −1−
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