Nice piece of equipment! I scored mine a few years ago from an "estate" sale (read dead person) and love it. My kids are always amazed at the volume it can produe without having to plug it in! I'm lucky that my father-in-law had a friend with a stack of old 78's that I can play on it - everything from opera to Slim Dusty doing Pub with No Beer ! Make sure you don't try and play modern albums on it, the needle eats the vinyl clean out of the grooves. If you can't wait for the needles, my father told me they just used to snap off cactus spikes and put them in - works fine apparently.
have fun with it. This is my relatively boring horn - love yours.