Received my Christmas gift from my wife today. The Woo WA22 is an all tube headphone amplifier. And yes, I know, it falls squarely in the immoderate indulgence category. But what doesn't in the audio hobby. I'm excited about this one - I haven't auditioned a tube HA in 2 years - the last was a Decware Taboo. Nice amp, just didn't do "it" for me. The 22 came with a big ol' Shuguang replica of a Western Electric 274b rectifier. Nice looking tube. The 6SN7 and 6080/6AS7 pairs are NOS. The 6080s are marked Philips JAN and the N7s are (just guessing) Sylvania - no brand on the glass or base, just Made in USA and 6SN7GTB with top getter. And NO, I'm not any kind tube expert or dedicated valve aficionado. I just stumble along and enjoy myself. Still letting it acclimate. It was chilly today. I'll start my break-in ritual tomorrow.