Booster
EarthQuaker Devices Tone Job
Schematic is avaibale HERE. And product description and eq curves HERE.
Rochambeau
This was a request.Based on Fuzzrucious Ram the Manparts but with a bit less gain on tap, no starve control but with tone and clipping controls. Schematic and info HERE.
Laney Black Country Customs TI Boost
Schematic is avaiable HERE. Through hole MC33178 op amps seem to have gone obsolete so you may want to try other low noise dual op op amps with BJT iputs such as 4580, NE5532, L833 etc. Or simply TL072s…
Triungulo Lab Ensemble Crunch
Here is a variation of the pre amp found in Roland/Boss CE-1. Note that the diode 1, 2 and the crunch switch is optional. Big thanks to Lorenzo for the schematic and for verifying this layout!
Boss FA-1 FET Amplifier
Slightly modified, subbing the two single op amps of the original to a dual. 1458 or 4558 should match the spec of the original ones.