My new understanding is that you want 4 pulses in a 4 second period BUT NOT EQUALLY spaced. Is this correct ?
If so here is one possible way to achieve this. Clock a 4 bit synchronous counter (Synchronous to avoid decoding glitches.) every 1/4 second. (From Q10 of your first 4040.) Connect the outputs of the counter to a 4 line to 16 line decoder. (Such as a 74HC154)
Or together outputs 1, 3, 5 and 13 from the 16 line decoder.
I don't understand what this will achieve.
Les
If so here is one possible way to achieve this. Clock a 4 bit synchronous counter (Synchronous to avoid decoding glitches.) every 1/4 second. (From Q10 of your first 4040.) Connect the outputs of the counter to a 4 line to 16 line decoder. (Such as a 74HC154)
Or together outputs 1, 3, 5 and 13 from the 16 line decoder.
I don't understand what this will achieve.
Les