Here is a little video that I made of my restored Zenith Trans-Oceanic R600 from 1955. The sun was just setting, and I was able to pull in signals on all the bands.
This one has the Filt-R-Pak power supply installed (from eBay), which eliminates the filter cap, and the 50A1 tube. The 1L6 tube has been replaced with a solid-state version. In addition, the resistors in the filament string for the tubes have been replaced.
#zenithradio #shortwave