Trimmers in CGS builds
Q:
Most on the boards seem to be 4 pin trimmer leads, and the ones i got, and really only could find on mouser, are all 3 leads. i am pretty new to trimmers, so what would the 4th leg be? did i totally fuck up? if so anyone need some 3 legged trimmers?
A:
Multi-turn trimmers are available with a few different number of pin outs
either
/-------\ /-------\
| x | | |
| x x | | x x x |
+-------+ or +-------+
What I think Ken have done is that he have laid out a trimmer such as
/-------\
| x |
| x x x |
+-------+
Where the middle solder holes are the connected to each other - allowing you to use either type of trimmer. At least that the case on some of the multi-turn trimmers on the VCO.