Here is the circuit.
Lines like so ----> point towards current direction and redstone wire
Lines without arrows are just wire ----- |
1 = Input (Redstone Torches, Levers, plates, etc)
0 = Output(doors,water,lava,TnT,etc.)
D = Diode (one direction of current aka repeater)
In = Inverter(inverts power for more complex circuits)
Circuit
1)
IOI
2) OI
I
3) I think you get the picture as long as there are two D/C currents if one is on the other will not work.
4) Little more advanced
===A/C=__________ __________====A/C
1------In__________O__________In-----1
*havent tried this one but in my brain it should work try it out =)*
*Oh yeah A/C means Alternating current (can go both ways)*