Re: push-push on/off switch



On Sun, 21 Oct 2007 16:44:55 -0700, John Larkin
<jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

On Sun, 21 Oct 2007 16:42:34 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@xxxxxxxxxxxxxxx> wrote:

On Sun, 21 Oct 2007 16:31:01 -0700, John Larkin
<jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

On Sun, 21 Oct 2007 18:27:19 -0500, John Fields
<jfields@xxxxxxxxxxxxxxxxxxxxx> wrote:

On Sun, 21 Oct 2007 16:20:52 -0700, John Larkin
<jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

On Sun, 21 Oct 2007 17:57:00 -0500, Vladimir Vassilevsky
<antispam_bogus@xxxxxxxxxxx> wrote:



John Larkin wrote:

http://img20.imageshack.us/my.php?image=pushpushxo0.jpg


A sort of oscillator?

VLV

Why would it oscillate? No, it's a push-push on/off switch.


Not according to LTSPICE:


My sincere apologies to LTSPICE, but it does work.

Try, say, 1M and 0.47 uF.


John


Yep, It will work for optimal button-press times. Then it will leak
one way or 'nother ;-)

It's fun that it works, but otherwise useless.

...Jim Thompson


Does everything that's fun have to be useful?

John

No. But a stable-state switch would be more interesting.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
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