SONY MX-510 Microphone Mixer (Vintage, 5-Channel, Stereo)

This belonged to a friend that ran a recording studio.
It's in good shape and and I'm assuming it works, but I have NOT tested it.
It runs on 8 C-sized batteries OR a standard DC power cord (not included).

Someone else's review of it here:
https://www.youtube.com/watch?v=wxs7r-hGgJw

Also here:
https://reverb.com/item/13584892-vintage-sony-mx510-portable-5-channel-analog-mic-phono-line-mixer-vu-meter-made-in-japan

Text from that article:
Vintage Sony MX510 portable 5-channel Analog Mic /
Phono / Line Mixer VU Meter,Made in Japan
Great sounding Made in Japan genuine Sony Mixer

5 channel mixer with Turntable preamp
also line in input and mic without Phantom
Analog VU-Meter on summing
6.3mm Headphones output

This mixer was introduced early 90s it's rare to find one in great shape.
With level indicator and battery check
perfect analog sounds for turntable
Power adapter is not included. (12V)
Runs on 8 'C' batteries as well.