- Joined
- 24 Nov 2004
- Messages
- 428
- Reaction score
- 4
- Country
I opened up a 1970s vintage sewing machine treadle the other day expecting to find some triac type chopper controller but instead found a weird plunger type of thing with what looks like carbon rods either side.
what's the mechanism?
I guess I should post a pic but its in the shed and I cant be bothered to at the moment
what's the mechanism?
I guess I should post a pic but its in the shed and I cant be bothered to at the moment