ben franchuk wrote:
  Tom Jennings wrote:
  Tubes are fun, but they're not really any
good for anything useful (and
 I don't want to hear from any audio tube nuts :-)
 
 You are too late for that ...  LONG LIVE TUBE AUDIO! ...
 
Amen to that.  My current motherboard (AOpen AX4B-533TUBE) has a vacuum
tube audio pre-amp on it.  You also can't beat tubes for high output RF
amplifiers.  My Ham rig consists of a Kenwood TS520 (3 tubes) hooked to
an Ameritron 400W amplifier (4 Tubes).