I have a TS-930SAT(auto tuner) with the matching SP-930 SPeaker and MC-60
desk mic. The Radio has the Inrad 2.1KHz filter switching kit installed and
well as both 500Hz CW filters. The InRad kit uses the dimmer switch to go
from the standard 2.7KHz filters to the 2.1KHz filters. It works very well
and, if you wish, it can be removed. I have all the documentation for it.
All equipmeent has been kept in a non- smoking shack and is a 9 out of 10 or
better. Yes, the rig has some scratches. For give me, I actually used the
rig. Everything works 100%. $600.00 + shipping takes it.