When [Kerry Wong] discovered an Amrel PPS 35-2 Programmable Power Supply from the overdue 90s on eBay, he known it because the single-channel model of some other unit he owned, the dual-channel Amrel PPS-2322. Naturally, he bought it and.
From the outdoor, they appear slightly other however weigh about the similar. But the similarities at the inside of make it somewhat transparent that they proportion a not unusual design. There are some things that grasp your eye and the 35-2 doesn’t appear somewhat as neatly idea out, with some elements being soldered into awkward-looking puts. Capacitors bristle like barnacles the place they’re soldered at once to a connector, and a blob of scorching glue anchors two resistors that get up out of the board like a few weeds.
The hyperlink above displays some prime solution side-by-side pictures between the two fashions, and [Kerry] thoughtfully supplies a hyperlink toin addition to (.zip) for the 35-2. A teardown video is embedded under.
Benchtop energy provides are necessary equipment, however we’ve additionally noticed how.