Jiri Placek's Blog – March 2018 Archive (1)

So I finally found an 18" speaker for my Masterpiece V in Clifton cabinet.  The original speaker is most likely in Japan, courtesy of a greedy seller. 

The MP5 amplifier in my radio has a six-pin socket for the speaker cable, and the speaker I have has a cable with six-pin connector as well.  What concerns me are the measured field coil resistances - 3410 Ohms between pins 1-6, and 365 Ohms between pins 3-6, respectively.  Both coils are connected in series.

These resistances…