Extreme ElectronicsMar 10
What is your favorite 4000 series CMOS chip ?
Show threadExtreme Electronics
Mine was always 4011... closely followed by 4001, 4020 and 4017.
Mar 10 at 7:58amWeb
Show threadPhilip BraggMar 10
@Extelec 4011 is just too useful and foundational for all the other circuits but what about a 4007 which is almost lot logic at all? It was a favourite of a late friend and it should get a mention, you can make so many cool things with a 4007.
Show threadconcretedogMar 10
@Extelec oooh 4017 is a beauty. CD40106 hex schmidt was in many ways my 555. Loved a 4011 and a 4040. Cheekily gonna add the motorola mc series 14557B as well!
Show threadExtreme ElectronicsMar 10
@concretedog what did you use the 14577 for ?
Show threadconcretedogMar 10
@Extelec why a musical tap looper design of course! https://concretedog.blogspot.com/2011/04/new-tap-looper-design.html?m=1
New Tap Looper Design

I'm continuing to explore the tap looper concept and have come up with this schematic for a variable length, tap programmable looper (click ...

Show threadExtreme ElectronicsMar 10
@concretedog ahem thats a 14557 not 14577 video amp :)
Show threadconcretedogMar 10
@Extelec doh!
Show threadconcretedogMar 10
@Extelec I got the 14557B bit right though... its a long time ago!
Show threadExtreme ElectronicsMar 10
@concretedog It did prompt the question, I really thought there was an alternate use for the video amp chip i was unaware of :)
Show threadPhilip BraggMar 10
@concretedog @Extelec 40106 was also the favourite of Ray Wilson of MFOS and I can see how it could be your 555.
Show threadExtreme ElectronicsMar 10
@synx508 @concretedog 4011 was my 555 :)
Show threadExtreme ElectronicsMar 10
@synx508 @concretedog and this was my bible :)
Show threadPhilip BraggMar 10
@Extelec @concretedog Weirdly mine was 4047, because my introduction to 4000 series parts was through Tom Duncan's Adventures with Microelectronics, the followup to Adventures with Electronics. I never had the third book, Adventures with Digital Electronics, so I don't know what happened next…
Show threadconcretedogMar 10
@synx508 @Extelec I was a big fan of Ray. So sad when he passed. I chipped in a donation for his funeral costs. :(
Show threadPhilip BraggMar 10
@Extelec I once owned about 10,000 4020s that I'd bought from Bonex for £50, which also meant that I'd cycled the 11 miles home with them on a bike without panniers. It took me years to get rid of them at rallies and still find tubes of them in unexpected places. I still remember the huge box that they were originally in had a hole in it and it would occasionally launch some tubes of 4020s as I cycled home.
Show threadPhilip BraggMar 10
@Extelec thinking about it, it must've been more like 2,000, an unmanageable quantity …anyway
Show threadftgMar 11
@synx508 @Extelec
I still have around 900pcs of TC4069UBP's.
Many problems start looking like they can be solved by some unbuffered hex inverters.