Electrophonic Model 447 4D Quadraphonic Stereo Receiver System. 4D Quadraphonic 4-channel stereo receiver. AM/FM radio tuner. Unit did power up. AM/FM did work but there is an issue with output to speakers.
Electrophonic Model 447 4D Quadraphonic Stereo Receiver System. 4D Quadraphonic 4-channel stereo receiver. AM/FM radio tuner. Unit did power up. AM/FM did work but there is an issue with output to speakers.