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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
A heretical approach to Lunetta design
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piedwagtail



Joined: Apr 15, 2006
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PostPosted: Mon Oct 16, 2017 2:59 pm    Post subject: A heretical approach to Lunetta design
Subject description: Richarius's 4015 Matrix
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Zero 4015's used. No TTL/CMOS 14/16/18/24/28 pins at all.

R

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



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PostPosted: Tue Oct 17, 2017 2:48 am    Post subject: Reply with quote  Mark this post and the followings unread

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)

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piedwagtail



Joined: Apr 15, 2006
Posts: 286
Location: shoreditch
Audio files: 3

PostPosted: Tue Oct 17, 2017 3:19 am    Post subject: Reply with quote  Mark this post and the followings unread

(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

Last edited by piedwagtail on Wed Jul 25, 2018 6:20 am; edited 1 time in total
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piedwagtail



Joined: Apr 15, 2006
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PostPosted: Wed Oct 18, 2017 11:42 am    Post subject: Reply with quote  Mark this post and the followings unread

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
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