The font for the Octave Multiplexer is called Sinaloa.
It is from Linotype: http://www.linotype.com/1479/sinaloa-family.html
I don’t have it, but I want it, if I find it, I will send it to you.
Do you think you can email me the .AI/.EPS file of the Big Muff design?
jordancameron@rocketmail.com
-Jordan
