In 1939, Motorola introduced a small portable AM radio, the 41-S “Sportsman.” Just look at that. Smaller than a six pack. Quite a feat in 1939. It was not, however, the smallest–that honor goes to the Majestic model 130, a three tube set. BUT. For a conventional 4 tube superheterodyne AM receiver that used full… Continue reading A Nifty Little Radio and a Vicious Cycle