It was considered a portable receiver, but connected to the power grid, with the option of using batteries, We found it in a 1941 publication. The 455 kHz IF circuit used a loop antenna tuning the medium wave band. The output was on loudspeaker.
It was considered a portable receiver, but connected to the power grid, with the option of using batteries, We found it in a 1941 publication. The 455 kHz IF circuit used a loop antenna tuning the medium wave band. The output was on loudspeaker.