05-27-2019, 12:29 PM
I’ve heard that some early Philco superheterodyne radios used a dynatron oscillator with a 24 tube. Apparently, only 24 tubes will work in these, and 24A tubes will not. Does anyone know which models had this feature? I’ve looked around at Philco schematics, and have yet to find one with a dynatron oscillator.