Trinity Amps - Trinity Amps sells kits of five two channel versions of the Marshall 18 watt amps - the sIII, Plexi, Plexi MkII, TMB and the v6. All 18 watt amps
Custom Grand 36W Tmb Guitar Amplifier Head Chassis Only (Marsh-18W Circuit) - China Marshall Guitar Amplifier and Electric Guitar price
DIY British Style 18W TMB Tube Amp Kit INCLUDES CHASSIS & FACEPLATES!! IN STOCK
Tube-Town 18W TMB "Marshall" Amp Kit - Let's Make Some Noise! - YouTube
What do I have? (Marshall 18w TMB clone) : r/GuitarAmps