There was a mint UM70 on harmony central for $500. I was the second person to contact him so I got beat out. Oh well. Seemed like a really good deal though.
No, the capsule is supposed to be the same design as the Neumann M7 capsule. Thats probably what you're thinking of. The UM70 is a (now discontinued) microphone.
"1995: The UMT70S and MT71S with an SMD amplifier and transformerless actively balanced output are introduced replacing the UM70, UM70S, M71 and M71S."
The "S" I think stands for "Select". They supposidly dealt with noise issues in the original models.
I notice the MT71S is listed on the MG International site, but not on the MG North American site...