Probably you will already know that but you need to run all logic ics on the same voltage which quirks a liittle as the 4066 should run on 9v to do the switching right. I dont think the 74hct will help as its specification is 2-6v.
Either use all cmos 40xx or 74C types.
40106 is a cmos schmitt trigger.
Hope this helps
Thomas
Either use all cmos 40xx or 74C types.
40106 is a cmos schmitt trigger.
Hope this helps
Thomas