Variac is a generic trade name for a variable autotransformer. If that doesn't help explain much, let's look at what a regular transformer is, and how they relate to a collection of vintage arcade ...

Posted in Tool Hacks Tagged Arduino Uno, current sensor, Isolation Transformer, relay, test equipment, transformer, variac ← Casting Silicone Parts With 3D-Printed Inserts For Stiffness ...