Boss
Boss FA-1 FET Amplifier
Originally a bit of a flop from Boss, the FET Amplifier was made famous by U2’s The Edge. It features a 2-band Baxendall tone stack and the Volume control is more like a gain control. Originals use 2 single opamps that are pretty hard to come by these days, so they’ve been replaced by a … Read more
Boss OD-1
This is the precursor to the SD-1 and the TS808. The OD-1 was built by Boss from 1977-1985 and made in 2 versions. Both version are very similar in circuit topology—buffer > gain/soft clipping stage > gain stage > buffer—but the early version used a quad opamp, while the later version used a dual opamp … Read more
Boss FZ-2 Hyper Fuzz
Now updated with corrected values since schematic online had quite a few resistor values wrong. Verified by Marcello M. And a short demo by MTK
