The first mikes I bought, probably about 1973, were a pair of Sony ECM-22Ps, which I still have but don't use. I also bought a pair of Telex omni condensers from Radio Shack and used them for a short time.
In the late 70's I got a pair of Shure SM81s, and retired the ECM-22Ps, and soon afterward bought a CAD Equitek E200. The SM81s and Equitek E200 still see heavy use today.