Podwójna trioda małej mocy firmy Tube Amp Doctor
Wersja zbalansowana
"Latest revision providing great musical performance and rich tone. This TAD 12AU7A / ECC82 has especially
strong systems which are selected to provide two symmetric triodes.
The perfect choice for stereo audio applications and ideal as a balanced driver.
Replaces 6N10, 6189W, 5814A etc."