thanks for the compliment Alvaro, I really like her. Not too sure of her age, but I suspect in the 50's somewheres, now I need to find another! I can tell you about the Compensator Switch though, the seller included a copy of the Owner's Manual!
AES: audio engineering society
ORTHO: orthophonic
NARTB: national assoc of radio and tv brodcasters
EARLY78: (I guess this means old ones, LoL!!)
FFRR: full frequency range records
FLAT: flat
qoute from the manual;
"In the manufacture of records, the treble range is pre-emphasized(boosted) to mask surface noise and the bass range de-emphasized in volume to conserve groove space and reduce distortion. All manufacturers do not record with the same amount of treble pre-emphasis and bass de-emphasis and, therefore, a series of settings for varrying degrees of compensation is required." (kinda goes along with your Loudness Thread, sorta)
in the manual it lists many recording companies and the suggested setting, neat!