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 Forum index » DIY Hardware and Software » Lunettas - circuits inspired by Stanley Lunetta
40106 oscillator trouble
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computer at sea



Joined: Aug 16, 2007
Posts: 9
Location: east coast US

PostPosted: Mon Jul 19, 2010 11:02 am    Post subject: 40106 oscillator trouble Reply with quote  Mark this post and the followings unread

Has this happened to anyone else?

Occasionally when breadboarding a circuit (and sometimes on a soldered circuit) with a few oscillators off the 40106 one will stop working. As far as I can tell when this happens there aren't loose connections.

I can make oscillators on other pins but not in the spot that's the root of the trouble.

Any thoughts would be appreciated.

PS: 9volts
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tjookum



Joined: May 25, 2010
Posts: 360
Location: Netherlands
Audio files: 26

PostPosted: Mon Jul 19, 2010 1:43 pm    Post subject: Reply with quote  Mark this post and the followings unread

yeah well, I would say part of the deal of getting 6 oscillators out of a 30c chip Smile .
But the more correct answer would be static from your hands. cmos are very sensitive to this and you might have fried a portion of the chip.

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Ajax



Joined: Apr 05, 2010
Posts: 63
Location: San Francisco

PostPosted: Mon Jul 19, 2010 3:29 pm    Post subject: Reply with quote  Mark this post and the followings unread

If you arent using all of the inputs, tie them to ground with a pulldown resistor. Without em, things can get a bit wonky Razz Also try moving the chip to another area on the breadboard, just in case.
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