The JVC MC-1 is kind of like a moving-coil Decca, in that it uses printed micro-coils that are mounted very close to the stylus (perhaps 1 mm away from the stylus). As a result, there is little clearance between itself and the LP, but in return, detail resolution is quite high. It is a much smoother, much more capable, all-around performer than any of the Deccas that I have heard.
Output level is rather low at 0.2mV, and coil impedance is a bit high at 30 ohms, so most phono stages will find it a real challenge to deliver the resolution and dynamics that the MC-1 is capable of.
It is an interesting performer that is well-worth repairing, IF you can find someone who is up to the task.
FWIW, the original cantilever is beryllium, and the stylus is a Shibata.
There are some specifications here:
http://cartridges-navi.com/victor.html
In contrast, the Blue Point may not be worth the effort of having it rebuilt.
kind regards, jonathan carr