I use the 2078 in my QRP kits I sell at Midway Electronics. The ME40, ME80, ME30, and ME20. I get all mine from ebay sellers. They are name branded but that doesn't mean anything. I individually test each final transistor for power out, spectral purity and heat dissipation. So far of the 400 or so I have purchased, I haven't come across one that was defective. YMMV
Rick
