#1
So i was looking at the simple A/B splitter box on smallbox (http://smallbox.zeonhost.com/projects/abbox/) , very simple i know Anyway, i noticed the two resistor values are different. Could anyone explain this?

I was wondering about the DC Jack too. Would this be 9V? And would i therefore be able to use a 9V battery and use a stereo input jack so the LEDs are only on when there is a cable in?

cheers
ABBA
#2
resistor values are different because two different color LEDs need different current limiting resistors, or the LEDs blow out. and yes, you can do that with the DC jack. it's 9V.
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#3
Ok thanks I didn't know that about the resistors. In electronics at school we always use the same resistor value no matter what the LED colour so i assumed that was always the case
ABBA