Playing with a soldering iron
John Hollis Titan boost/octave. This is an op amp input pre amp/booster into a transformer. The transformer is 1k/20k and can output 30v from a 9v battery. The switch inserts a diode bridge for an octave effect.
The sound of the boost warm and clear. The octave effect is pretty good and different from other transformer based effects since the input signal is clean rather than a fuzz tone.
I built this Super Hard On Booster a long time ago. I used one of those old DPDT switches without an LED. Later I wanted to add an LED I used R.G. Keen’s Millennium Bypass on a small piece of stripboard and hung it off the LED leads.
Fun fact: Zachary Vex participated in the discussions over at Diystompboxes but was not okay with people talking about his circuits, the SHO was the exception.
