A heretical approach to Lunetta design

piedwagtail · Last edited by piedwagtail on Wed Jul 25, 2018 6:21 am; edited 3 times in total

Zero 4015's used. No TTL/CMOS 14/16/18/24/28 pins at all.

R

PHOBoS · Posted: Tue Oct 17, 2017 2:48 am Post subject:

I was going to mention to connect a NANDulator to it but I see you are already ahead of me Laughing

without CMOS or TTL ? sounds like it is passive or very discrete. Hmm you didn't say no 8-pin DIP; opamps ? 555s ?

(could you reduce the embedding size a bit btw, it doesn't even fit on my screen)

piedwagtail · Posted: Tue Oct 17, 2017 3:19 am Post subject:

(squeezed it)

No 4xxx or 7xxx etc series.
Used opamp DIPs only for buffering to outside.
Discrete 4015 Matrix that would be pure lunettacy!

R

piedwagtail · Posted: Wed Oct 18, 2017 11:42 am Post subject:

Here's the schematic; exactly as Richarius designed it.
https://drive.google.com/file/d/0B0HOGb7bxUOBVFJGQUhnaHgySlk/view?usp=sharing

...and exactly what it is.

R