The Catalinbread Sagrado Poblano Picoso is a bass version of Jack Orman’s (AMZ) MOSFET Booster. Really the only difference between the two are a couple cap values. So if you want to build the AMZ version, sub the 470µF cap with a 100µF and the 220nF with a 100nF. Should be a pretty easy fit in a 1590A.
