New tubes - Royal Princess 300B
Starting from February 2011 Sophia Electric introduces new 300B tube - Royal Princess™ 300B. By March 31 2011 new tubes are available in a special introductory price!
New tubes - 845 MK3 and 211 MK3
Starting from November 2010 Sophia Electric introduces new versions of 845 and 211 tubes. By end of 2010 new tubes are available in special introductory prices!