Vintage Maestro Oberheim PS-1A + Vintage Correct Meastro Phase Shifter Footswitch. You rarely see these together, let alone in perfect working order.
This unit is updated and mod'd slightly with an concentration on retaining the over all circuit warmth.
New Hammond transformer at proper voltage and current levels, extra lower power supply noise filtration mods, reduced overall power supply circuit operating current for lower circuit temperature and overall longer operational lifetime. Extra transparency with a mid range tone boost for the input buffer, better input BC559 transistor buffer, slight boost in unity gain volume, tweaked phaser settings by ear for slight Leslie style asymmetry and max settings by ear.
This is a seriously cool pedal with a buttercream Frosting rich tone. If you're collector or a player that needs only the best vintage gear, put this on your list.