Variacs and Guitar Amplifiers
Variable transformers are used for several purposes with guitar amplifiers.
Tubes in a
Variacs
Description
VARIAC® Variable Transformers
The transformer dials shown on the site indicate from 0 to 100, yet out put is greater than 100v (140v). How does one know the output voltage when in use if not a Digital model?
The variable transformer dials are marked as 0-100% of rated output voltage. It is recommendedI have a very old Variac. Which model can be used to replace this variable transformer?
The following link will cross reference most models. Variac Cross Reference Most models have the samAre there flux-coupling problems with variable transformers mounted closely?
Coupling should be minimal but heating could be a problem - Provisions to allow heat to escape shoulVariacs for my amp! I own an All-Tube (analog power) 100w guitar amp, and have recently been informed of a way to hook up a Variac to the amp.
Variable transformers (Variacs®) are commonly used with various tube type amplifiers and other tubeCan I vary the speed of my motor with a variable transformer?
Many motors can use a variable transformer for speed control. Motors that usually can be controlledHow can I protect my three phase variable transformer from excessive currents?
You may (and it is highly recommended) place a fuse in each phase between the variable transformer a