x = block
r = red stone
t = redstone torch
s = redstone torch on side of block
v = redstone torch on block
l = lever on side of block
b = button on side of block
o = output redstone
y = redstone torch with block over it on side of block
h = redstone on block

From the top:

o
y r y
h h
r r
r s r
s h s
v h v
b l

Set Lever so the torch isnt lit.