Here is a rare vintage Lenoxx SL-700 combination AM/FM tuner, cassette player/recorder, and 8-track tape player/recorder. I tested everything I could:

Unit powers up and all the lights and meters appear to work.
Tuner works well.
Cassette playback works well. Rewind, fast forward and tape counter all work as expected. Playback sounds good.
8-track playback works well. Sounds good.

I did not test the record function on either tape section. I also did not test the satellite speaker outs or the aux input. 

Note that the speaker outputs on this unit are RCA jacks - converters are readily available to allow light gauge speaker wire to be used. 

There is a bit of static in the volume knob and the balance control - this got better with use but did not disappear entirely.