Re: Transistor booster design

On Tue, 31 Jul 2007 00:12:50 GMT, ehsjr <ehsjr@xxxxxxxxxxxxxxxx>
wrote:

Jim Thompson wrote:

<much of value snipped>


You can take your post to "basics", and they'll pat you on the back...
a blinking LED is "success" over there... and, unfortunately "success"
here as well sometimes :-(


"Narrow range of components" is a hacker's "design" criteria, but not
a true engineer's.



What? Why Jim, you want _another_ blinking LED circuit??!
(Somebody need to supply the correct emoticon for that whopper!)

Ok, here's a groaner for you: narrow range of components,
violates rules, works only at a small voltage range.

9-12V
Vcc ---[1K]---+------+
| |
| \e
[330uF] |--- 2N2222
| /c
| |
| [LED]
| |
| [1K]
| |
Gnd ----------+-------+

Base - no connection, Vcc somwehere between 9-12 volts.
Damn thing blinks.

Ed


And the sad part is you don't know WHY it works ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

America: Land of the Free, Because of the Brave
.

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