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Re: 555 Timer Question

Subject: Re: 555 Timer Question
From: "DSallee"
Date: Fri, 23 Dec 2005 20:44:58 GMT
Newsgroups: sci.electronics.basics
> Why make it so hard?
>
> Just use the relay connected to the transistor connected to Q14 of
> the 4060:
>
>
>                 +V
>                  |    +9V        -9V
>         +--------+    |          |
>         |A       |    O-->   /<--+
>      [DIODE]  [COIL] - - - -/
>         |        |         O
>         +--------+         |
>                  |         +----------> +/-V OUT
>                  C
> 4060 Q14>--[R]--B
>                  E
>                  |
>                  +--------------------> GND
>
>
> -- 
> John Fields
> Professional Circuit Designer

Hey John,

Thanks for the input as I am also learning... :)

I'm a little confused on how this would work? With how you have it, wouldn't 
you have to supply a -9v so it would switch between the +9v and -9v  with 
just the one relay??

Sorry if this is elementary but my "little" brain only came up with what I 
had with the relays... LOL   Can't seem to comprehend what you are 
describing...

The top 3 voltages ( +V , +9 and -9) in your drawing above, are those the 
"supplied" voltages??

Dave 



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