There are at least two versions of the switches. The Klixon version Dave is working on. These were on Mooneys from the 70s' until sometime in the 80s' when they moved over to the E-T-A version. There may be a third version for the later model Mooneys. They are similar in size but do NOT work interchangeably. The buss connections is different for one. Here are pictures of both. Top one is the Klixon, bottom E-T-A.
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