I’d love to see a reissue/clone of the tc electronic booster line driver + distortion (BLD). The tc integrated preamp has plenty of clones out there but everyone has ignored the BLD. It does a lot of cool stuff, the noise gate is pretty good, and the boost section is different from the tc pre. There is a service manual available with schematic and pcb layout (though kinda hard to read the pcb layout as it’s a photocopy of a photocopy).
There was some low-effort reissue called the classic booster made at some point in the mid 2000’s but they did something wrong in making it, I also own one and it doesn’t sound the same as my BLD, and the noise gate doesn’t work. also cannot take higher voltage supplies like the BLD.