Mercury Magnetics Offers You Guitar Amplifier Transformers in Several Flavors
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"Mercury Magnetics makes the best-sounding, most accurate and most reliable clone transformers on the planet." -- ToneQuest Report "A change to a higher-quality output transformer will have a greater impact on improving the overall tone than playing with different brands of tube."
-- LegendaryTones.com
"In all the years I've been playing and working on vintage amps, and converting so-called reissues into what the original ones were, Mercury Magnetics™ transformers are the only ones I'd ever consider installing in not only my customers' amps, but my own personal amps as well. They have 'The Tone' we all have searched for. In many aspects they exceed the sound and tone of our old, fave amps. To say they're the best is certainly an understatement! Handmade quality at its pinnacle!"
-- Don Butler, "All I can say is 'holy sh*t!!' In over 40 years of playing I cannot remember being so surprised at such a difference one part change can make." -- Ron Jackson, Austin TX "Your output transformer made a huge improvement in my Super. Had a couple of buddies from Fender here, and these guys have better ears than anyone I can think of -- they loved it. One said, 'How much?!... make me one now!'" -- Paul Chambers, www.SpecialtyGuitars.com "I couldn't believe the difference that ToneClone® choke made to my AC30. I knew that the output transformer was going to make a difference but it didn't really sound 'Voxy' until I put that choke in. I don't think the term 'harmonic complexity' is appropriate, it's more like HARMONIC ACCURACY... and it tightened up the low end also!! Thanks for existing." -- Steve Hunter, Athens GA "The quality and craftsmanship in the Axiom® transformers is unparalleled in today's world. I have been truly amazed at the quality and speed of your work. Your knowledge base of transformers has pulled me through a few difficult times, and you always get me exactly what I need -- off the shelf or custom made. You truly do stand above the crowd!"
-- Adam Grimm, "Thought I'd drop you a line to let you know that my Axiom®-retransformed 1980 vintage SL Plexi project is alive and kicking. I'm trying not to get too excited, but bloody hell! It's almost too good to be true. I have to say I don't think I've ever heard anything like it. I'm floored!" -- John Bettison, Australia "I just wanted to say thanks for all of your help in making the decision to switch over to a Mercury Magnetics choke and Radiospares deluxe output transformer for my Bluesbreaker. Everything with my installation worked great and the amp sounds fantastic again. Gone are the gritty tones and something really wonderful is in its place. Over the past few weeks I have converted the amp to JTM45 original specs, upgraded caps to Sozo-type mustard caps, and also swapped out the resistors for carbon comp, these were incrementally warmer sounding, but nothing took the cake quite like swapping out the output transformer and choke. The amp sounds absolutely great at low volumes and the breakup is really dead-on to old Clapton and all the other classic '60s and '70s tones. Man, this was worth the effort. Thanks for building these kick-ass products and helping in the decision making process." -- Dewey McCafferty "We noticed a big difference when the output transformer on our old Pro Reverb died. We had always thought that this amp, in particular, sounded exceptionally good until we replaced the OT with yours. We were astounded by the improvement in the detail and the string definition of the amp. It was amazing, and it made us wonder how many players with great old amps might be limping along, sonically speaking, when they could sound so much better with a lively OT that isn't suffering from the effects of old age." -- ToneQuest Report |
ToneClone Series® -- Exact tonal duplicates from the crème de la crème and best-sounding vintage transformer designs of all time.
ToneClone Plus+® -- Same as ToneClone Series but with minor enhancements.
Axiom Series® -- Want more bloom and harmonic response from you amp? Axioms represent the most significant advancement in transformer designs in 50 years!
Radiospares Series® -- Clones of THE original and most sought-after Marshall- and Vox-style transformers. Extremely revealing and transparent sounding while absolutely dripping with harmonic content. (Not just for Marshall and Vox amps! anymore!)
APS (American Pro Series)® -- Mercury's newest brand name. APS transformers are built and optimized specifically for modern tube-based amplifiers. Their emphasis is on quality components and reliability. Like all Mercury products, APS transformers are 100% made in the U.S.A.
Mercury Vintage™ -- Vintage transformer restoration service. Trust your priceless originals to us.
Mercury Custom Shop™ -- Custom transformer design and engineering for manufacturers and boutique amp builders. Mercury provides you with the expertise to make your amps extraordinary! All great-sounding amps begin and end with great-sounding transformer designs. Tap into Mercury and make your escape from the mundane.
ToneClone® Series Transformers
Let your ears rediscover and experience real vintage tone. We've cloned transformers from the most coveted vintage amps from the collections of the world's greatest players! We call them ToneClones because their specifications are genetic (vs. generic!) duplicates of the most sought-after amp transformers ever made.
Knowledgeable players know that no two old amplifiers sound the same, even of the same manufacturer, type and build date. And that over the decades only a few amps of each style are known to have that elusive "magic."
Simply replacing an old or burnt tranny with a generic or factory brand won't do the trick. In fact, just throwing any replacement transformers in there virtually guarantees your tone will be neutralized! That's why our engineers are constantly seeking out and duplicating the specs of only the best-of-the-best transformers to add to our library of great-sounding designs.
When an exceptional transformer is located it is carefully studied and analyzed. The Mercury Magnetics™ engineers take the time to clone every detail and nuance of these best-of-breed trannys -- not anyone can do it, and you can bet there are plenty of trade secrets involved in this process.
Imagine having an unlimited budget (and time!) to play thousands of amps -- including the often spectacular specimens held in private collections... anywhere in the world. Then from this exhaustive search you pick the one or two that have the sound. Well, you don't have to because we've already done the work for you.
That's also why there's more than one transformer set available for a given amp (and we're adding more ToneClones all the time!). For example, if you are looking for a new output transformer for your Fender® Bassman we have more than 20 variations to choose from. And each will give you a distinctly unique sound. No matter what the amp, when it was made, or the brand, we probably have at least one set of ToneClones for it.
If you own a vintage amp and you're likely to be concerned about preserving its irreplaceable original tranny. Consider swapping it for a ToneClone. Many of our customers use this method and then put away their original transformers for safe-keeping. In this way you can continue to enjoy your investment without inflicting irreparable damage. It's a great way to protect your asset!
ToneClone-Plus+®
transformers are minor variants to the
ToneClone
family. They're modified without tampering with the
original tone to match today's power company voltages and employ better noise
immunity.
Variations include: added input power taps, added secondary taps, and other minor enhances to the originals.
More good news -- all ToneClone transformers come with both our 10-year Workmanship Warranty and Tonal Guarantee.
To find out more, or discuss to the characteristics of the different tranny sets available for your amp(s), give us a call -- or email/fax.
Axiom® Series Transformers
Axiom series transformers are in a class by themselves. We've taken our advanced knowledge of modern transformer designs and mated it with our unparalleled expertise with vintage gear. The result is next-generation transformers that'll blow your mind!
With Axiom® trannys you get vintage tone but a lot more! More bloom, more overtone color, and awesome tonal depth. If you ever needed a demonstration as to how outstanding transformers affect your sound -- Axiom trannys will astonish you.
Axiom® trannys come with both our 10-year Workmanship Warranty and Tonal Guarantee.
To find out more, or discuss to the characteristics of the different tranny sets available for your amps, give us a call, email or fax.
Radiospares® Series Transformers
The original Marshall-style and Vox-style Radiospares® transformer designs. Ask any British guitar amp aficionado about Radiospares® and they'll bend your ear for days about the best-sounding Vox and Marshall amps ever made. Mercury is extremely proud to offer these outstanding transformer designs. The legacy continues....
All Radiospares® trannys come with both our 10-year Workmanship Warranty and Tonal Guarantee.
To find out more, or discuss to the characteristics of the different tranny sets available for your amps, give us a call, email or fax.
APS®
(American Pro Series) Transformers
The newest line from Mercury. APS transformers are built specifically and optimized for modern tube-based guitar amplifiers. Due to power, design and "real estate" limitations, not all modern amps can be modified or upgraded to handle the full-on affects of our Axiom, ToneClone, Radiospares or Partridge transformers. APS transformers correct many of the design limitations of the stock transformers to give you the most your amp can offer. An APS will make your amp more reliable and sound a whole lot better. If you depend on your modern amps for a living, then you need the peace of mind of APS transformers. Transformers made to take the punishment of being on the road and keeping your amp running.
All APS transformers come with our Automatic Thermal Resettable Fuses. Ask your Mercury Sales Rep about this important new feature!
All APS transformers come with both our 10-year Workmanship Warranty.
To find out more, or discuss to the characteristics of the different tranny sets available for your amps, give us a call, email or fax.
Mercury Vintage™ transformer restoration, rebuilding & rewinding service

Is the transformer of your prized vintage amp dying or no longer working? Do you have an original vintage transformer that does not work or is losing its tonality? Mercury Magnetics™ can refurbish your transformer back to its original specs.
To do this we methodically unwind your vintage transformer by hand, documenting every detail -- including every anomaly and turn. We then rewind your transformer by hand so it will sound exactly as it once did.
We DO NOT attempt to improve or alter the original tone or frequency response of your vintage transformer. With our attention to detail you can be assured that your vintage transformer will look AND sound terrific! Professional musicians, technicians and studios regard our rewinding services as the best there is, period. We believe you will too, GUARANTEED!!
Please call us at Mercury Magnetics for more information regarding this rewinding service.
Mercury Custom Shop™
custom designing
and engineering for manufacturers & boutique amp builders
For amp manufacturers and boutique builders, Mercury Custom Shop is your source for custom builds. No matter what your requirements, if you want it build right -- talk to us. We design and build only great sounding MI transformers that defy the capabilities of off-shore manufacturing techniques. Indeed, Mercury is the last hold-out in the world of this marvelous technology. When you really care about how your amps will sound, you need Mercury transformers onboard. No one else comes close. No one.
For more information, assistance, quotes or inquiries:
9167 Independence Ave. • Chatsworth, CA 91311 • FAX (818) 998-7835
Info@MercuryMagnetics.com • www.MercuryMagnetics.com
PRICE LIST / CATALOG
(818) 998-7791
Also
paul.patronete or patrick.selfridge
Attention non-North American customers: For a small additional charge we can provide our transformers with other input voltages.
CAUTION! The voltages in your amplifier can be dangerous. Transformers and chokes are not user serviceable parts. Installation of these components should always be performed by an experienced technician. The simple ability to use a soldering iron is not enough to qualify a "do it yourself person." Those who are inexperienced in working with electronic circuits should never attempt to service their amplifier. Household line currents can be deadly!! Transformers, chokes and large filter capacitors can store a dangerous charge for several days or more after the amplifier has been unplugged. Never touch the terminals of such devices without being certain of their charge status. Risk of shock and damage to equipment may result from mishandling and/or improper use of these components. Please use common sense and always think safety first. After all, tone is most enjoyed when you are alive to hear it.