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My patented method of cleaning switches, and btw tube sockets on a tester such as the TT-1, is isopropyl alcohol spray followed by canned air to dry, then bake in the hot sun or a 110 degree oven for a while. THEN you can re-lube the switch detents, and apply a little dioxin with a q tip to the switch contacts if you want. My TT-1 is my go-to tester, even tho I've got several much "higher end" testers as part of the obsession ... er... collection.
Last edited by BBTV; 03-23-2019 at 09:14 AM.
Reason: made a boo boo
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