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Chinese rotary switches look & feel like ceramic but plastic.


The giveaway (beyond the price) is the way rotor is attached to shaft. Enlarge the pic and it becomes visible: When manufactured the rotor was attached to shaft by forcing the still-hot & fluid material to ooze thru the circle of holes before cooling/hardening. Looks like ceramic but it is not.
 

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Better pic
This is not ceramic. The white dots in circle on metal surface (top of switch body) are hardened bubbles of material from when the plastic was molten/heated and forced through the holes in the metal during manufacture. I mistook body for ceramic.
KCT 1 Pole 6 Position 6mm Dia Shaft Band Channel Rotary Switch Selector w Cap
sold by 22newcentury ebay
Posting Item description states:
"Material is
Plastic & Metal & Ceramic"

I do not know where the ceramic is maybe the tubular spacers, idk but body plastic that melts when hot.

Best I could find for my RF input inductor switching was from Bulgaria. $13.50 shipping included, also Ebay
Rotary Switch 3A 350V Ceramic 1P11T 1-pole 11-position Silver Contacts.
 

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