Re: 555 Timer Question


"John Fields" <jfields@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:gjjrq15h9l09l46ou42sp8gfpblujmv8gu@xxxxxxxxxx
> On Sat, 24 Dec 2005 10:36:04 -0600, John Fields
> <jfields@xxxxxxxxxxxxxxxxxxxxx> wrote:
>
>
>> +9V
>> |
>> +----+-------------------------+
>> | | |
>> +--------+ | |
>> |A | O--> /<--O-+-O--> /<--O
>> [DIODE] [COIL] - - - -/- - - | - - - /
>> | | O | O
>> +--------+ | | |
>> | | | +--------->OUT
>> C | |
>> 4060 Q14>--[R]--B +------------------------>OUT
>> E |
>> | |
>> +-----------------+
>> |
>> GND
>
> ---
> The cathode of the diode should go to +9V:
>
> +9V
> |
> +----+-------------------------+
> | | |
> +--------+ | |
> |K | O--> /<--O-+-O--> /<--O
> [DIODE] [COIL] - - - -/- - - | - - - /
> | | O | O
> +--------+ | | |
> | | | +--------->OUT
> C | |
> 4060 Q14>--[R]--B +------------------------>OUT
> E |
> | |
> +-----------------+
> |
> GND
>
> --
> John Fields
> Professional Circuit Designer

Now see, I knew there was a simpler way to make the one I designed.. LOL I
just couldn't come up with it... The thought of using 1 DPDT relay had
crossed my mind but I wasn't seeing how it would work...

Now I do...

Thanks John for helping me out ... I'm planning on building a few projects
of my own during the next year.. I graduate in December 2006 .. will be
getting CET certified, J-Standard certified, A+ certified, FCC licensed and
certified...

I will probably be asking you some design questions in the future, If it's
ok?

I know I can just go out and buy these things but I think I would learn more
and have more satisfaction if I attempt to build them... Here is a list of
things I'm going to ATTEMPT to build.. LOL

Power Supply (fixed plus variable voltages)
DMM
Freq. Counter
Soldering station
Small Power Amp (stereo)
AM/FM Radio
Function Gen.

just to start with...

Thanks again for your help... looking forward to talking to you again...

Dave


.

Relevant Pages

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