Working on an old #zenith #antiqueradio for a friend. Model is #H845 - top of the line for its day in the 1960s. I haven't really dabbled with a #vintage #radio yet, but, watching and learning from lots of vids. So far, tested some #tubes and replaced 3 bad ones, though I might replace them all to ensure it continues working for a while since it's for a friend and I also bought a whole set of #NOStubes from Bob Dobush's site: www.findatube.com -- highly recommend for #vacuumtubes