In article , Brian Gaff
wrote:
Really? I used to find it was the triac when bulbs blew short.


Sounds like crap switches. , probably some chinese outfits makes the pots
with push switches. Many many many years ago you could find such things
at Tandy, but maybe nobody repairs dimmers these days so nobody actually
sources them any more. Brian

Rapid Electronics seem to have some quite obscure items

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from KT24 in Surrey, England