You might remember the computer power supply I converted to a DC power supply. Well in a word It sucked...
Always not the right voltage for what I needed. So while watching Ham Nation episode 17 I saw George build one from scratch out of junk box parts. This is just what I wanted. A regulated power supply where I could control the voltage to my exact needs.
Here is a peek at the insides before I stuck everything down. The large heat sink came from the old computer power supply, and since the project box was big I left it intact. Perf board ( I used point to point construction on the back side to wire it together) Its not very complicated a 4700 µf cap, voltage regulator, full wave bridge rectifier, fuse, plus a few other small caps.
The power supply came from Radio Shack 12 bucks...
I can control the voltage from 1.25 V DC to 35. V DC . I added an LED and powered it from the AC side of the circuit buffered with a 10KΩ resistor.
