Fortunately this bench power supply turns out to be very much like any number of similar 30V, 5A units, with repair videos and schematics available. While [Tahmid] doesn’t detail his ...

[Mike] just purchased this Atten APS3005S bench power supply for around $80. It does the job, but boy is it noisy! We were pretty surprised to hear it fire up in the video after the break.