doofus wah problem , no sound in bypass........

[bobster]

hey guys,
i have an old jen wah and i true bypassed it some months ago as per this diagram
http://www.wah-wah.co.uk/effects/tb1.png

ive never been that happy with it and it lost some power and balls. i tried the resistor tweak to return vol loss but it just made the tone harsh.
so , i have tried to put the old spst switch back in and find that i get a good healthy wah sound but when i switch to straight signal i get nothing NADA...
two known good switches give same result.
can anyone be kind enough to post a pic of an old style wah switch wiring arrangement? im csure ive just made on e stoopid mistake btu dont know where it is !

looking down on the guts of the pedal [ switch at top ] i have one terminal on left side which is wired to input jack with a jumper from there to circuit board near inductor.
on right side there are two terminals , top one has wire from output jack and bottom one has jumper wire from topmost lug on wah pot.
thanks guys
bob