I came across this win your amplifier and if fires up and works it’s got four giant tubes in it made in the USA. This thing is very old. I cannot find anything on this exact amplifier. I’ve saw one other BLJ linear amplifier that I think was a little more powerful than this one. I just want some information on this, and I’m just an electronic enthusiast I just want to know if anybody knows anything about the amplifier and what I should do with it !