NAGRA III Kudelkski Reel to Reel Vintage portable audio recorder.
Works great
Clean

https://www.nagraaudio.com/product/nagra-iii/

Here is a video of the unit in action
https://youtube.com/shorts/1UnrphBpUqs?feature=share

Runs on batteries or

Power adapter available here

https://www.bhphotovideo.com/c/product/885525-REG/remote_audio_ps24vnag_24v_power_supply_for.html/?ap=y&gbraid=0AAAAAD7yMh2tPpq_rtvy4UPlhNmNM4yiv&gclid=CjwKCAjwoIqhBhAGEiwArXT7K2JGd7ncADsJS2Hk-X0BdE-WJ_5lEi_gwu-XZnaEXECUlIzy1sXIcRoC2xwQAvD_BwE&lsft=BI%3A514&smp=y&smpm=ba_f2_lar

Tape reel not included