Jim Weir's - October 2000 (Understanding LED lamp indicators - Part II)

I'm trying to construct this circuit from Jim Weir's circuits page. Not
having much luck, but I am trying. I'm a sailboater, (you would not want ME
driving a plane!).
Can Jim or someone with some electronics look at my non-working attempts. I
have some pictures with my circuit descriptions at:
http://bellsouthpwp.net/k/e/kelmark2180/index.html
if someone can be of assistance.
Thanks; Don

"Not having much luck" doesn't exactly tell us what you are trying to do or
what is not working as you expected it. Wanna be a litle more specific?

Jim



"dwbauer" wrote in message
. ..
I'm trying to construct this circuit from Jim Weir's circuits page. Not
having much luck

Don,
A quick look shows that your schematic calls for a LM324 but your
breadboard is showing a LM339 wired as a LM324. Nice try. Not the same
pinout on the chips.
If you use a 339 you need to look up the pinout and make changes to
your wiring diagram accordingly.
Try National Semiconductors Website.
Clark Hinds
Cetacea Sound, Inc.

Thanks!
Somehow I have overlooked the obvious. If My eyes were better, I may have
caught that myself, but I doubt it. And for the other posts, what it is
supposed to do, is light up the green/clear LED with the brightness
controlled by that blue variable resistor at the top left of the circuit.
Believe me, when it lights, it is bright green. I hate being this slow, but
my excuse is that three years ago, I had the s*it beat out of me, topped off
by being shot. I'm alive, just not very bright anymore.
Many thanks to all who responded, if I have more problems, I'll post it in
an electronics forum.
Thanks Again; Don

wrote in message
oups.com...
Don,
A quick look shows that your schematic calls for a LM324 but your
breadboard is showing a LM339 wired as a LM324. Nice try. Not the same
pinout on the chips.
If you use a 339 you need to look up the pinout and make changes to
your wiring diagram accordingly.
Try National Semiconductors Website.
Clark Hinds
Cetacea Sound, Inc.