The device

[Talavs Riekstins]

Hello audio community!
New member here, Im not such a pro in audio electronics but are willing to learn. Time ago I found this thing together with old USSR audio tech in my basement. But I dont know what is that.. a power anplifier? I googled but didnt find anything, google only showed me some philis stuff. But this looks oldschool hommade device. It was sitting together with "Электроника МП 204" (1991 USSR stereo cassette player-recorder.
Thanks
Best regards Talavs

 

[Talavs Riekstins]

I opened it up so You all can take a look from inner perspective

 

[Rob Timmerman]

Looks like a 4-channel dimmer

 

[Talavs Riekstins]

Wow thanks Rob! Much apreaciate the help! Now I can learn how to make lightning effects in my room