uses for Variac - All About Circuits
Aug 19, 2018 · Hello there, A variac is a transformer with variable secondary winding turns. That means the applications are almost endless. Since in it's main uses it lowers power to AC …
Variacs are dangerous - All About Circuits
Dec 27, 2017 · Variacs are not isolated from earth. The variac pictured can put out 130V ac, referenced to earth ground. An isolation transformer is not referenced to earth making circuits …
Controlling motor-driven variacs - All About Circuits
Sep 30, 2021 · A buddy of mine is giving me a stack of variacs he has no use for. They're paralelled two ways for 0-140V, 100A single phase operation. It happens to be a motor-driven …
Isolation Transformer or Variac - All About Circuits
Feb 24, 2020 · Should I get a single output isolation transformer or a Variac that has isolation built in (i've provided some links below)? Also, I've read that you want to put the UUD (Unit Under …
Isolation Variac or Isolation Transformer? - All About Circuits
May 13, 2016 · I was in my teens some 40 years ago and somehow managed a 3A Variac for free and a 1 KW isolation transformer for like $10.00. I added an Analog voltmeter and ammeter as …
Saving a dead variac - All About Circuits
May 18, 2024 · I have a pretty old variac. It blew a fuse so I opened it up and about 1/4 of the winding looks burnt. So I assume there's a short in there. Is there any way to repair this or is it …
variac + rectifier + caps = dc power supply - All About Circuits
Aug 26, 2012 · Here is what I got 10amp 120 variac + 35amp 800v full wave rectifier + 450v 3500uf caps Will this work as a 0-120v dc power supply? will it provide a clean dc current? if …
Isolation transformer for variac advice. - All About Circuits
May 8, 2017 · Hello! I'm building "isolation transformer+variac+dim bulb tester combo" according to plans in attached pictures (from "Mr Carlson's Lab" YT channel - It's gonna be enclosed in …
Duel variac setup... | All About Circuits
Jun 15, 2016 · A good 220volt variac can cost hundreds and I already have (2) 120v 5 ampers. And keep in mind I still have poor control with the SCRs even though they are cheap.
Recommend me a Variac - The Gear Page
It's worth realizing that "Variac" was the trademarked name of a product by General Radio (that eventually became a catch-all term; " Vari able A.C.), while "Powerstat" is likewise a product …