807 single ended Tube amps DIY project, wired in tetrode connection (Class A) read more..
Back loaded horn loudspeaker with FOSTEX drivers. A DIY loudspeakers project by Costas Sarris. read more..
811A Tube amp DIY project by Costas Sarris. A single-ended direct heated triode design. read more..
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Push Pull 6550 monoblocks Tube amps DIY project, by costas sarris read more..
DIY Wilson Audio watt puppy style loudspeaker. A DIY loudspeakers project by Giannis Mihailos. read more..
6L6 single ended Tube amplifier DIY project, by Christos spathopoulos read more..