Delete comment from: Ken Shirriff's blog

spbnick said...

Please forgive my ignorance - I'm an amateur, and had a long day, but what's the purpose of the "second stage" diode, directly before the base of the NOR gate's transistor? I can only see one significant effect: voltage drop, but cannot see a use at all. Thanks, and thank you for another wonderful article!

Jun 21, 2021, 2:56:53 PM

Posted to Inside a transistorized shift register box, built in 1965 for Apollo testing