
Sylvania RS400R

The RS400R was released in 1966. 
Sylvania RS350W

The RS350W was introduced in approximately 1967. 
Sylvania RS400X

The RS400X was released in 1967 and is rated at 12.5 watts per channel RMS with less then 0.7% THD. 
Sylvania CR100W

The CR100W was released in 1968. It is rated at 12.5 watts per channel RMS with no more than 0.7% THD. 
Sylvania RS400X1

The RS400X1 was released in 1968. 
Sylvania CR275W

The CR275W was released in 1970. It is rated at 15 watts per channel RMS. 
Sylvania CR275WX

The CR275WX was released in 1970. 
Sylvania CR270W

The CR270W was released in 1971. It is rated at 20 watts per channel RMS with less than 2.0% THD. 
Sylvania CR2740

The CR2740 was released in 1971. 
Sylvania CR2742A

The CR2742A was released in 1971. 
Sylvania CR2742A1

The CR2742A1 was released in 1971. 
Sylvania CR2742W

The CR2742W was released in 1971. It is rated at 25 watts per channel RMS with less than 0.5% THD. 
Sylvania CR2743A

The CR2743A was released in 1971. 
Sylvania CR2743A1

The CR2743A1 was released in 1971. 
Sylvania CR2743W

The CR2743W was released in 1971 and is the top of the line model for the CR2700 series of receivers. It is rated at 50 watts per channel RMS with less than 0.5% THD. 
Sylvania CR280W

The CR280W was released in 1971 and is the top of the line model for the CR200 series of receivers. It is rated at 50 watts per channel RMS with less than 2.0% THD. 
Sylvania CR2741

The CR2741 was released in 1972. It is rated at 12.5 watts per channel RMS with less than 1.0% THD. 
Sylvania CR27411

The CR27411 was released in 1972. 
Sylvania RQ3745

The RQ3745 was released in 1973. It is rated at 7.5 watts per channel RMS or 15 watts per channel RMS when Bridged, both with less than 1.0% THD. 
Sylvania RQ3746

The RQ3746 was released in 1973. It is rated at 15 watts per channel RMS or 30 watts per channel RMS when Bridged, both with less than 1.0% THD. 
Sylvania RQ3747

The RQ3747 was released in 1973. It is rated at 25 watts per channel RMS or 60 watts per channel RMS when Bridged, both with less than 0.5% THD. 
Sylvania RQ3748

The RQ3748 was released in 1973 and is the top of the line model for the RQ3700 series of quadraphonic receivers. It is rated at 50 watts per channel RMS or 125 watts per channel RMS when Bridged, both with less than 0.5% THD. 
Sylvania RS4740

The RS4740 was released in 1974. 
Sylvania RS4743

The RS4743 was released in 1974. It is rated at 30 watts per channel RMS with less than 0.25% THD. 
Sylvania RS4744

The RS4744 was released in 1974 and is the top of the line model for the RS4700 series of receivers. It is rated at 60 watts per channel RMS with no more than 0.25% THD. 
Sylvania RQ4745

The RQ4745 was released in 1973 and is an updated version of the RQ3745 released in 1973. It is rated at 7.5 watts per channel RMS or 15 watts per channel RMS when Bridged, both with less than 1.0% THD. 
Sylvania RQ4746

The RQ4746 was released in 1973 and is an updated version of the RQ3746 released in 1973. It is rated at 15 watts per channel RMS or 30 watts per channel RMS when Bridged, both with less than 1.0% THD. 
Sylvania RQ4747

The RQ4747 was released in 1975 and is an updated version of the RQ3747 released in 1973. It is rated at 25 watts per channel RMS or 60 watts per channel RMS when Bridged, both with less than 0.5% THD. 
Sylvania RQ4748

The RQ4748 was released in 1975 and is an updated version of the RQ3748 released in 1973. It is the top of the line model of the RQ4700 series of quadraphonic receivers and is rated at 50 watts per channel RMS or 125 watts per channel RMS when Bridged, both with less than 0.5% THD. 
Sylvania RS5740

The RS5740 was released in 1975. It is rated at 5 watts per channel RMS with less than 1% THD. 
Sylvania RS5741

The RS5741 was released in 1975. It is rated at 10 watts per channel RMS with less than 0.5% THD. 
Sylvania RS5742

The RS5741 was released in 1975. It is rated at 20 watts per channel RMS with less than 0.5% THD. 
Sylvania GTE 2300

The GTE 2300 was released in approximately 1976 and is the bottom of the line model for the GTE series of receivers. It is rated at 20 watts per channel RMS with no more than 0.5% THD. 
Sylvania GTE 2400

The GTE 2400 was released in approximately 1976 and is the middle of the line model for the GTE series of receivers. It is rated at 55 watts per channel RMS with no more than 0.1% THD. 
Sylvania GTE 2600

The GTE 2700 was released in 1976 and is the top of the line model for the GTE series of receivers. It is rated at 70 watts per channel RMS with no more than 0.1% THD. 
Sylvania RS5739

The RS5739 was released in 1976. It is rated at 5 watts per channel RMS with less than 1% THD. 