CA77 Generator Rotor options

[Svenskabru]

The output of these generators appears to be a function of the rotor chosen. My current rotor is stamped C72 (L). I presume that's low? I've seen plain C72, and C72 GC. Anyone know the differences?

[LOUD MOUSE]

Never seen a C72GC.
The C72 was the first and the C72(L) was last.
It was a lower magnetism than the first. ................lm

The output of these generators appears to be a function of the rotor chosen. My current rotor is stamped C72 (L). I presume that's low? I've seen plain C72, and C72 GC. Anyone know the differences?