The unit works and sounds good. There's a couple of things that I've noticed while testing. If I'm using an auxiliary input and switch over to FM radio and I haven't stopped playing the device on the Auxillary input. Then it bleeds through to the radio, I've tested a lot of vtg stereo receivers and I've never heard this happen before. The second thing is that sometimes the "TAPE MON" switch will cause interference with the right channel. The right channel will go silent. But when I press the "TAPE MON" switch a little bit it will go back to left and right channels. It doesn't go out intermittently while playing but if it's powered off and then on again I've noticed this issue. Could be that the switch needs cleaning or replacing or perhaps a deeper problem. Please know that I am not an Audio technician and these issues are only my limited observations. See pictures for more details.

I have no idea when the last time it was serviced and it may require unforeseen repairs.