This is an overdrive pedal created in collaboration with guitarist "Greg Koch" (Greg Koch/Cock) and the US effects pedal brand "T. JAUERNIG ELECTRONICS" (Tim Jauernig Electronics)! I wonder why T-REX disappeared? They made so many great pedals... I thought so too, but it seems they filed for bankruptcy in 2019 due to worsening management issues and internal problems. However, the founder seems to have bought back the brand and is running it again on a small scale! Go for it!