Don't know if you guys have already heard this, but check out Christophe Lartilleux's two youtube recordings with Selmer 634 and (apparently) the same mic Django used to record with - Melodion Melodynamic 75a (a French mic, a few of which are sometimes available on the French eBay site, in varying states of repair/functionality).
Pretty cool, and very, very close to THE sound. It helps that he's a great player too
Jon
Comments
Of course what mic Django used depended on the studio.
Best,
Barengero
Anthony