1972 Traynor YBA-2B http://i1135.photobucket.com/albums/m631/creehound/done/llll.jpg?t=1327277136 http://i1135.photobucket.com/albums/m631/creehound/done/l.jpg?t=1327277118 http://i1135.photobucket.com/albums/m631/creehound/done/lll.jpg?t=1327277128 http://i1135.photobucket.com/albums/m631/creehound/done/ll.jpg?t=1327277113 So this is what i know. It has the stock speaker, it is 25watts, made in 72 from what i can tell, it uses 2 12ax7a pre amp tubes, and 2 6bq5 power tubes. I do have a few questions. I see a ext speaker out. So did they make a matching cab? Ans does that mean this amp will run at 4ohms. And if i unplug the combo speaker could i run another set of cabs at 4ohms?