I got beat twice over the last few weeks on switches advertised as ceramic but they were plastic. Thing is, the switch body looks, feels and even makes a ceramic-like noise when struck with metal tool but melt when heated. Useless. Beware
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Chinese rotary switches look & feel like ceramic but plastic.
- Thread starter Naysayer
- Start date
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.
Attachments
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.
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.
Attachments
Last edited:
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