DIY Fixed & Variable Power Supply with Transformer V2.1 

Hello to dear friends and companions! I'm back with another video from the "DIY" series. Continuing from the previous video, we'll build a sample power supply available in the market, using the method we learned in the previous tutorial.
In the previous tutorial, we learned step-by-step how to build a variable power supply using an AC transformer and a few simple, inexpensive components. Now, in this video, we'll use the same method to create a practical power supply with minimal cost and maximum efficiency.
I hope you find this tutorial useful as well. If you do, please like it. If you have any comments, questions, or need further assistance, please share them in the comments section. And please share this video with anyone you think might find it helpful.
Parts and components needed:
AC Transformer
Bridge Rectifier (or 4 rectifier diodes)
16V 2200µF Electrolytic Capacitor
LM317 Voltage Regulator
Heat Sink for cooling the voltage regulator
Perforated copper board
10-turn 10kΩ Potentiometer (1 piece)
10kΩ Potentiometer for breadboard (from buck converter boards)
6-position Selector Switch
2 Suitable Knobs
2 Banana Jack Sockets (female)
2 Banana Plug Connectors (male)
2 Alligator Clips
1 On/Off Button
Digital Voltage Display
Ready-made Plastic Box for the power supply
Download schematic files:
download.wisel...
Download box layout files:
download.wisel...
Here are links to 2 similar power supplies available in the market:
1. [Example Power Supply 1](dgkl.io/api/v1...)
2. [Example Power Supply 2](dgkl.io/api/v1...)
Background Music Copyright:
All rights reserve to www.bensound.com