whisky-dave wrote:
cheers a bit pricey though hopping for about £1

$0.036 each (+shipping):
https://www.aliexpress.com/item/1005001442108461.html
although I'm not 100% certain those have a switch (5 contacts would suggest
so, but I'm worried by the word 'stereo').

These pricier ones look to have a switch:
https://www.aliexpress.com/item/1005001846032316.html
but you need to make your own thumbwheel.

Theo