Booster
Lell EX-9 Exciter
Schematic avaiable HERE Note that pot lug numbers isn’t labelled in the schematic. And the pot tapers is unknown but my best guess is that they are linear. This one seems to be a treble booster/light overdrive with a tonestack somewhat related to a parametric eq.
DOD 210 FET Preamp
Surprised this one hasn’t been done. A nice small and quick build, and should have lots of boost on tap and fatten up your tone nicely. Could be a good platform to mod to taste. Seems to be on the rare side to boot. Only video I could find was a DIY build that has … Read more
Maestro FRB-1 Full Range Booster
With added voltage doubler since original units had two 9v batteries.
