Mint condition SANSUI TU-9500 TUNER is a frequency linear-line type AM/FM 5-unit variable condenser and 3 dual gate MOS FET in the FM front end and 2 stages of RF amplification and mixer stages.A 2 element filter for excellent wide band selectivity. the MPX section is DCC and SCA filters. The tu 9500 is a excellent example of the sansui trademark in tuners which made this piece to this day a highly desired vintage piece. 
sensitivity(IHF) 1.7 mv
AM TUNER section
sensitivity 46 db/m, selectivity 25 db or more IMR 100 db/m(1MHz)
IF rejection 100 db or more db/m
output voltage OV-1v
tape rec out 1.4 mv
THD mono 0.2 % or less, Stereo 0.3% or less
SN RATIO 75db or more, Selectivity 80 db or more
Capture ratio (IHF) 1.5 db,  IFR 100db or more
IF rejection 100db or more,  stereo separation 40 db or more
antenna input  300 ohms bal, 75 ohms unbal