Review on 💡 Pack of 5 JIUWU LM317 Buck Step Down Power Supply Modules for DIY-DC Linear Conversion by Chase Hosea

I use 4 of these to power a pair of miniDSP units for a two channel stereo system. They work great and provide a good low noise DC source even when using a very cheap power supply that only has a full wave rectifier and a capacitor. This thing has nothing but a hoot of ripples, but these lm317s do a great job of tidying up. I also like that they are adjustable. Excellent price. Sent quickly. All four work perfectly. Install two 10V and two 5V in series to double the hum cancellation. Can not complain. They were also cheaper than me trying to build a custom circuit by just buying all the parts individually. These suction cups are plug and play. Recommended for all hobbyists who need cleanly regulated DC voltage.