The 2N2920 is used as input differential pair in some PS Audio amplifiers, so I would expect it to be of reasonable quality. Take care, Doug ______________________ The Electronic Peasant www.electronicpeasant.com Quoting Heitor Alves <heitor.alves at gmail.com>: > Are theses Dual transistors any good? > > 2N2920 and 2N2060 > > lets ear it :) > > Heitor >