cmos q's and odd problem

[Peter Snowberg]

Leave the outputs floating. There is no need to tie them anywhere.

For the unused 4016 sections, ground all three pins for each switch to be sure, but I think you only need to ground the control input. For the 4013, ground D, Clk, Set and Reset. Leave Q and /Q floating.

-Peter

[Dan N]

Jimmy, sorry for the hijack.

Thanks gez and Peter! I was heading for a big bummer without this thread.

Dan

[jimmy]

feel free to hijack my threads. most of them end in me frying a chip or putting something in backwards

[gez]

when i adjust the trimmers, very little change in voltage occurs. im pretty sure ive cooked it.

Have you checked the voltage at the input as you adjust the trimpot, just to make sure it's not the pot?

[jimmy]

hmmmmm... ill give that a go tomorrow. ive never liked the looks of those shady open type trimpots anyways.