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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
Does a 4051 need power?
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astroman



Joined: Sep 13, 2012
Posts: 44
Location: UK

PostPosted: Mon Jun 24, 2013 1:44 pm    Post subject: Does a 4051 need power? Reply with quote  Mark this post and the followings unread

Strange but had this before.........I was breadboarding some of the circuits from Fun With Seamoss using a 4051. Didn't do much until I unhooked the power leads to that chip????????????
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Draal



Joined: May 18, 2010
Posts: 305
Location: Oak Park, IL
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PostPosted: Tue Jun 25, 2013 3:33 pm    Post subject: Reply with quote  Mark this post and the followings unread

Generally speaking, yes you have to power these cmos chips (typically pin 14 or 16, depending on the chip). I say generally because you can run the output of another chip into the power pin of another chip to get some wacky sounds. In this sense, you're gating a chip on and off via the pulses of the chip "driving" it.


Whenever things start acting too strange, I take another look at my connections to make sure I didn't goof something up. And my success with breadboards has been crap-tastic; now I just commit to perf and lock n load.

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PHOBoS



Joined: Jan 14, 2010
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PostPosted: Wed Jun 26, 2013 5:13 am    Post subject: Reply with quote  Mark this post and the followings unread

What Draal said. Cool

If the circuit doesn't work when powered correctly there is something else wrong with it. Not connecting the powerpins can be a fast way
to destroy chips.

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astroman



Joined: Sep 13, 2012
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Location: UK

PostPosted: Wed Jun 26, 2013 7:57 am    Post subject: Reply with quote  Mark this post and the followings unread

I'll remember this for future!!! Thanks!!!
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