An incomplete Avanti history
B- line 1971 none shown
C-line 1972
First flat chassis & varactor tuners intro.
C4730X1 non SC, probably hybrid.
C6730X1 remote, varactor tuner, almost sure a flat chassis.
D-line 1973
D4760X non SC
SD2564X SC
SD2568X pop up combo. Separate SPKRS, AM-FM, 8T player.
Set itself also has 2 spkrs so is abt 6" wider. VERY rare.
E-line 1974
4 lead cap intro !
Switch from flat to CC2 chassis came mid line so MAY have come either way.
E4760X non SC
SE2564X SC
SE2590X combo as above
F-line
SF2590X " Avante XV" flat chassis ! combo as above.
SF2564X "Avante XIV" CC2
F4760X "Avante XIV" non SC
mini Avantes 19"
SF1962X "Avante XI" SC
F4082X "Avante XI" non SC
G-line 1976
G4750X non SC. Gets new 18 position rotary tuner.
1977-1980 catologues missing
M line 1981
SM2535X "Avante 2000" SC, OSD w/clock, comb filter.
2nd generation System 3
That seems to be the last one...........
73 Zeno
LFOD !