Is this a good thing or a bad thing.

Mr. Spock · Post by **Mr. Spock** » Sat Apr 07, 2012 9:04 pm

Here is my circuit for my 1/1000 scale Enterprise B saucer. Is is good or bad?

http://img690.imageshack.us/img690/381/enterprisejb.jpg

moderator edited to remove inline image

WarpeD · Post by **WarpeD** » Sat Apr 07, 2012 10:20 pm

It's fine as long as that's a typical 20 ma LED.

http://led.linear1.org/led.wiz

Matt1982 · Post by **Matt1982** » Sun Apr 08, 2012 1:41 pm

Seems a but basic and boring

en'til Zog · Post by **en'til Zog** » Sun Apr 08, 2012 6:39 pm

Simple, but should work well.

Scott Hasty · Post by **Scott Hasty** » Sun Apr 08, 2012 8:34 pm

Nix the 9 Volt battery and resistor. Replace the battery with two AAA's. You'll simplify the circuit and add additional current capacity.

Yes, I hate the 9 Volt battery; it is virtually useless in today's circuitry...

Tchail · Post by **Tchail** » Thu Apr 12, 2012 11:46 pm

If you insist on using a 9V circuit, then use 3 LEDs in series - that way you can skip using the resistor.

Otherwise I'd agree with Scott - just use two AA or AAA's (or a 3V wall-wart) and wire all of your LED's in parallel. That way you can also skip the resistor.

Cheers,

-Tchail

Glorfindel · Post by **Glorfindel** » Thu Apr 26, 2012 8:14 pm

For one LED it looks fine.
Why don't you skip the battery's all together and go with a 9v wall wart instead. Connect up to a jack inside the model and use the plug when needed. This way you don't have to fumble with creating access to your battery. Just make sure your jack and plug are the same size. I use 2.1mm with 9v power supplies. Works well enough and I don't buy battery's.