VINTAGE General Radio "GenRad" Variac! (How It Works, How it's Wired, & Tests)
25:00
Benchtop Variac Auto Transformer Restoration
11:29
How to build a Homebrew AC variac for Radio amplifier repair Test bench
44:06
How An Isolated Dim Bulb Tester Works (Current Limited Isolation Transformer And VARIAC)
9:37
Variac Overdrive
11:00
(Not) Restoring an Auto Transformer
14:25
Is Your Microwave Oven Slowly Cooking You? Find Out!
18:17
Building a VARIAC for 1000W and up to 270V AC
12:23