What is your favorite 4000 series CMOS chip ?

[synx508@bsd.network]

@Extelec I've just remembered a discussion about 4000 series chips where one of the designers entered the chat (actually a redesigner). I think it was the 74HC4046A, which *is* awesome but maybe HC doesn't count here.

[extelec@mstdn.social]

@synx508 the 4046 (non hc) counts though, used that a lot when teslacoiling.

[concretedog@mastodon.social]

@Extelec why a musical tap looper design of course! https://concretedog.blogspot.com/2011/04/new-tap-looper-design.html?m=1

[extelec@mstdn.social]

@concretedog ahem thats a 14557 not 14577 video amp

[concretedog@mastodon.social]

@Extelec doh!

[concretedog@mastodon.social]

@Extelec I got the 14557B bit right though... its a long time ago!

[extelec@mstdn.social]

@concretedog It did prompt the question, I really thought there was an alternate use for the video amp chip i was unaware of

[synx508@bsd.network]

@concretedog @Extelec 40106 was also the favourite of Ray Wilson of MFOS and I can see how it could be your 555.

[extelec@mstdn.social]

@synx508 @concretedog 4011 was my 555

[extelec@mstdn.social]

@synx508 @concretedog and this was my bible

[synx508@bsd.network]

@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…

[synx508@bsd.network]

@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.

[synx508@bsd.network]

@Extelec thinking about it, it must've been more like 2,000, an unmanageable quantity …anyway

[alphabetter@mastodon.social]

@Extelec Duh! 4017 - how else are you going to make LED scrollers?

[concretedog@mastodon.social]

@synx508 @Extelec I was a big fan of Ray. So sad when he passed. I chipped in a donation for his funeral costs.

[crashtestdev@woof.tech]

@Extelec 4011, idk why, I think it was because when I was 11/12 I followed a tutorial that taught how to build a computer out of them; and now I'm here, and here is pretty nice

[raymaccarthy@mastodon.ie]

@Extelec
It was the 4046 PLL for a while then the 4066 Quad switch.
Maybe now the 4069U unbuffered Hex inverter as it can be an amp or osc up to 18V.
Long ago I switched to 74HC logic instead of slow 4000 series.

[extelec@mstdn.social]

@rasteri 4066 quad analogue switch iirc

[synx508@bsd.network]

@rasteri @Extelec IIRC 4016 is more amenable to using it in a linear mode but it's a while since I tried. 4066s are used with a PWM control signal in several 1980s and even early 1990s broadcast audio processors, you get a 40dB or so of control range with no meaningful distortion, just add low pass filters on the i/o to get rid of the switching noise and to prevent aliasing.

[davedarko@chaos.social]

@Extelec

the 4069 is pretty nice