As we have seen the technology of our old cars come back in a new form, I just received an email from Samsung about the new vacuum tube technology on their newest audio dock.
http://www.samsung.com/us/2012-wireless-audio-design/?MKM_RID=0112286175&MKM_MID =1252140&CID=eml-ce-mult-1012-213
Second only to fuel, vacuum tubes are the US's primary export. Somebody has been using them for a long time. What took Samsung so long?