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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
is this acceptable?
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mike page



Joined: Sep 26, 2016
Posts: 113
Location: norwich, uk

PostPosted: Mon Jun 18, 2018 10:05 am    Post subject: is this acceptable? Reply with quote  Mark this post and the followings unread

having two 4051's sampling from the same bank of voltage dividers?
Posted Image, might have been reduced in size. Click Image to view fullscreen.

oh but with buffers at cv 1 & 2
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PHOBoS



Joined: Jan 14, 2010
Posts: 4088
Location: Moon Base
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PostPosted: Mon Jun 18, 2018 11:22 am    Post subject: Reply with quote  Mark this post and the followings unread

As long as the inputs of the buffers are high impedance that should be fine. Not that it would break anything otherwise but it
could affect the voltages, they'd still be the same for both though. At least that's what I think, I've never actually tried it.

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mike page



Joined: Sep 26, 2016
Posts: 113
Location: norwich, uk

PostPosted: Mon Jun 18, 2018 11:28 am    Post subject: Reply with quote  Mark this post and the followings unread

excellent Smile thanks
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IGR



Joined: Aug 31, 2014
Posts: 14
Location: Brno

PostPosted: Tue Jun 19, 2018 4:06 am    Post subject: Reply with quote  Mark this post and the followings unread

Why did you choose exactly 0167? I'm very curious about what you're building!
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Steveg



Joined: Apr 23, 2015
Posts: 98
Location: Perth, Australia

PostPosted: Sat Jun 23, 2018 2:38 pm    Post subject: Reply with quote  Mark this post and the followings unread

I have a similar design using capacitors rather than pots. As many 4051s as you wish can read out the waveform at different frequencies.

@IGR ... nothing significant about 0167 ... Mike just has 8 potentiometers which he as numbered 0 through 7 because they connect to inputs 0 through 7 of the 4051. But to reduce repetition he has only drawn the first and last two.
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