Marantz 4300 Stereo / Quad Receiver Power Mode Selector Knob

Marantz model 4240 Stereo 2+ Quadrial 4 Receiver

Marantz 4230 4240 Stereo / Quad Receiver Parting Out - Power Switch w Broke Stem

Marantz 4240 Stereo / Quad Receiver Parting Out - Volume Potentiometer

Marantz 4230 Stereo / Quad Receiver Power Mode Selector Knob

Marantz 4240 Receiver DOLBY FM SWITCH

Marantz 4240 Stereo Receiver Power Mode Selector Switch

Marantz 4400 Stereo / Quad Receiver Power Mode Selector Knob