[sdiy] My 4069 attempt not working

[Nicolai Czempin]

René Schmitz wrote:

>
> It would be easier for us to tell whats wrong, if you told us what you 
> observe at the integrator output, the first and second gate of the 
> schmitt trigger. (There is supposed to be a sawtooth sitting arround 
> Vcc/2 at the integrator output, and discharging pulses (going high for 
> about 1us) at the schmitt trigger output, and the inverted version of 
> those pulses at the junction of the two schmitt trigger gates. But 
> thats not going to help you, since the pulses wont be there, if there 
> is no saw, and vice versa.)

Here are the (estimated off the oscope, I can give more precise values 
off the DMM if you need them) readings on the different pins. All are DC 
voltages, with no oscillation noticeable:
14: 9V
13: 0V
12: 9V
11: 6V
10: 0V
9: 0V
8: 0V (Shouldn't this be inverted somehow??)
7: 0V