Darkglass Microtubes 900 V2 Amp In excellent as new condition only 6 months old and had a very easy life! Any marks in the pix are pesky fingerprints!!   Two drive circuits B3K and vintage microtube and blend to keep the bottom end   Bought for a project that didn’t happen fully boxed with foot switch an data cable for updates and IR cabs    Welcome to check and test it £675 Collect Oakham LE15 6NP  Can post next day for approx £25