#garfield Logs

Nov 30 2021

12:43 AM rue_mohr: https://worldradiohistory.com/UK/Practical-Electronics/70s/Practical-Electronics-1970-02.pdf
12:51 AM rue_mohr: polprog, pdf page 54
12:51 AM rue_mohr: whats interesting about common emitter NPN transistors with pullup resistors is that you can often substitute them for inverters
01:28 PM polprog: rue_mohr: yes, I was measuring the frequency response of a cmos inverter in the linear range
01:29 PM polprog: whats interesting is that the mono and astable multivib has only two of these "inverters", so im not sure how you would build it with actual inverters
01:29 PM polprog: use 3 and you have the boring ring oscillator
01:29 PM polprog: bo(ring)² oscillator
01:30 PM polprog: another way you could form the question, is where does the astable multivib have the 180* phase shift..
01:30 PM polprog: necesary for all oscillators of that type