From Tom Fine: "... if you want to sound anywhere
remotely like Little Walter or his class of harp players, you gotta
overdrive a tube amp and even
overdrive your cheapo crystal microphone by cupping it close to the harp..."
The classic sound is very specifically the Asiatic JT30 microphone plugged
into a "tweed" Fender Champ or its Gibson equivalent from the same era. For
many years the JT30 was the cheapest microphone available.
Bob Olhsson Audio Mastery, Nashville TN
Mastering, Audio for Picture, Mix Evaluation and Quality Control
Over 40 years making people sound better than they ever imagined!