Got an Electro - Harmonix echo / chorus / vib pedal in with no effects
output. Needed a schematic to see where the signals went, so emailed them.
Within a couple of hours, I had an email back, with pdf's of the two
versions of the circuit attached. How's that for good service ? Well done
E - H !!

What an unexpected pleasure to find a company that still takes customer care
and tech support seriously :-)

Arfa