OK what pre and post WWII General receiver did/do you like to use. And why. It does not have to be the best performer, just the most fun. My oldest is the most fun, a 1922 Kennedy model 311 It has a "sw" switch for that below 200 meters crap. It is a one tube regen. Fine tuning is done by waving your hands near it and then holding still as it has no shielding. Post war-A National NC-183 NBS1. Far easier to use that the HRO Series.