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 devices, whether or …
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.
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 not , what else is …
Recommend me a Variac - The Gear Page
Jul 18, 2005 · 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 …
Worn out variac brush? - All About Circuits
Dec 23, 2019 · The part that appears to be a plain carbon brush on a variac brush is a special type of material -anisotropic graphite- that if goes bad; would need replacement, I doubt sanding or …
What's a good Variac to get? - The Gear Page
Finding the "sweet spot" on the variac linked to the gain and volume settings on the amp takes a little bit of experimentation, however, the end result has always proven valuable in terms of sound quality …
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 safer to work on …
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 Test) on …
Any reason to get the Dunlop Band of Gypsys Fuzz Face instead of …
Oct 21, 2022 · Since the MXR Variac fuzz is a Band of Gypsys Fuzz Face with the additional tone and variac knobs, would it be a better idea to just get the MXR if I'm looking for that same fuzz face tone …
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 scrap?