Share your pictures and experience of PFC units and components, the older the better! Here's a controller, using mercury to switch in the stages of capacitance.
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Share your pictures and experience of PFC units and components, the older the better! Here's a controller, using mercury to switch in the stages of capacitance.
Here's the unit the controller is from 30+ years old
Made by PQE where I served my apprenticeship a PFC company unfortunately gone. Maybe 15 years old