I’ve been maintaining my master frequency guide for all the common RF frequencies. Might be handy for you if you play with Amateur radio, software defined radio or any other radio
I reference this often when I’m using my Software Defined Radio to get a quick idea what I am seeing.
Reviewing the cheapest lab power supply on Amazon and I was totally surprised!
Description: UNIROI DC Bench Power Supply, 0-30V/0-5A Available Power Supply with 3-Digit LED Display, Adjustable Power Supply Alligator Clip Leads (Banana Plug and Spade Lugs), Input Power Cord
Full tutorial how to make your own battery packs.
I bought a budget priced variable transformer from Amazon but apparently it arrived defective. In this video we troubleshoot the problems then repair and test the unit. No need to return it when we can fix it ourselves.
I fix the cheapest saw on Amazon by welding up a primer bulb protection bracket. This saw has the primer in a horrible spot and it fell out due to my gloves hitting it when gripping the saw. Easy fix and this Remington Rebel will be a half decent saw I think.