I'm helping a friend restore a Lafayette HA-225. It has a 6AQA8 as the 1st AF amp/BFO. For the life of me I can't find this tube's specs or where to find a replacement. Of course, I can find the 6AQ8. Any pointers on specs and sourcing a new one would be most helpful. Kind regards es 73, Mack de WB4MAK www.nfarl.org www.sedxc.org