Delete comment from: Ken Shirriff's blog

orgwood65@gmail.com said...

I joined Magic Dot around 1972 and we were using a modified 555 for our touch switch that Hans had changed the top metal layer for our needs. I met with him later as we were designing an IC for an encoded keyboard version. I believe I still have a wafer of the 555 or the modified version that we used.

Mar 29, 2021, 11:42:58 AM

Posted to 555 timer teardown: inside the world's most popular IC