I read on antiqueradio.com, (I think) that the output is 10 watts, and that the chassis is hot. Here's a tube list, Sylvania 12at7, all Zenith, 35c5, 19t8, 12au6, (2) 12ba6, 6a84, 6bj6.
I pulled the chassis out, for a cleaning and deoxit of controls and tube sockets, put it back together and it still plays. My only functional tube gear.