Mercury Magnetics

We manufacture transformers exclusively for guitar amplifiers. We're unique in a number of ways: 100% American made -- no tricks or hidden imports -- we really do make them from scratch, right here in California! 100% handmade and hand-tuned using only handwound components -- each and every transformer is consistent from one-to-the-next. If you ever need to replace one of our transformers your amp won't lose its tone -- your replacement will sound exactly the same as the original. American-made steel -- we're the only transformer manufacturer who still special orders the unique steel alloys used in our transformers. These alloys are not only made here in the USA to government specifications, but they are not available anywhere else in the ( www.mercurymagnetics.com )