Featured Products
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M-100-67-O
$383Rare transitional, pre-Plexi, post JTM era output transformer —
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BH5H-KIT
$373Complete upgrade kit for your Blackheart Little Giant amp head (BH5H) or combo (BH5-112). Our XLG Upgrade Kit requires only a transformer swap, and a few minor circuit board modifications. You can do it yourself, or we can refer you to an amp tech who can make the upgrade for you.
For our other Blackheart Little Giant Kit, see our Mean 13 kit.
Included in the kit:
-Axiom Power Transformer
-Axiom Output Transformer (4, 8, 16 Ohm Taps)
-Axiom Mini-Choke™
-Other parts necessary to make the upgrade
-Fully illustrated step-by-step color manual, with wiring schematics and instructionsAvailable in 120V only. At this time export versions are not available. Amplifier not included
Discontinued.
All Results
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AC4-KIT
$409Whether you use your VOX AC4tv for practice, gigging or recording, take it to the pro-level with the Mercury Studio-Pro Upgrade. Experience the lush vintage tones that only Mercury transformers can give your amp.
Included in the kit:
-Axiom Power Transformer
-Axiom Output Transformer
-Axiom Mini-Choke™
-Other parts necessary to make the upgrade
-Fully illustrated step-by-step color manual, with wiring schematics and instructionsKits are available in 120V only. Amplifier not included.
Discontinued.
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C600-KIT
$326Mercury’s kit has everything you need to upgrade your Reissue Fender Champion 600 amp including detailed step-by-step, full color, illustrations, schematics and photographs to help guide you through the process. Installing our Mercury Upgrade Kit dramatically transforms your Reissue Fender Champ “600” (or Gretsch Electromatic) into a keeper.
Included in the kit:
– Axiom Power Transformer
– Axiom Output Transformer
– Axiom Mini-Choke™
– Other parts necessary to make the mod
– Fully illustrated step-by-step color manual, with wiring schematics and instructionsNote: Speaker no longer included.
Available in 120V only. At this time export versions are not available. Amplifier not included.
Discontinued.
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EPJR-KIT2 (No longer available)
Upgrade Kit for the remarkably inexpensive Epiphone Valve Jr. amp (combo or head). This demonstration Upgrade Kit features high-end, pro-quality performance transformers like those in great-sounding amps costing anywhere from hundreds to thousands more. Our Upgrade Kit makes the modified Valve Jr. the lowest-cost introduction ever to the wonderful world of boutique amplifier tone.
Ever wonder how much better your amp could sound just by upgrading its transformers? Here’s your chance to discover the night and day difference.
Included in the kit:
– Axiom Power Transformer
– Axiom Output Transformer (4, 8, 16 Ohm Taps)
– Axiom Mini-Choke™
– Other parts necessary to make the mod
– Fully illustrated step-by-step color manual, with wiring schematics and instructions
– BONUS! The “6V6 Mod.” Takes your Valve Jr. to even greater heights! Retrofits a 6V6 tube into the circuit. Allows you to run the EL-84 and 6V6 separately or in tandem.Available in 120V only. At this time export versions are not available. Amplifier not included.
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TT-KIT
$397It’s our simplest Upgrade Kit, yet. All you (or your amp tech) do is swap the transformers and make a few minor circuit mods. The kit also includes an optional Pentode/Triode mode selector switch that expands the tonal possibilities even more!
Also included in the kit:
– Axiom Power Transformer
– Axiom Output Transformer (4, 8, 16 Ohm Taps)
– Other parts necessary to make the upgrade
– Fully illustrated step-by-step color manual, with wiring schematics and instructionsAlso consider adding our 9 Henry Mini-Choke for a big affect on the overall tone and feel of your amp.
Available in 120V only. At this time export versions are not available. Amplifier not included.
Discontinued.
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GA79-RVT-O
$158GA-79RVT — #TF-88-O — single 8Ω secondary — 2 3/8″ mounting centers
*This transformer is also used in the Gibson GA83-S and GA88-S amps
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GA79-RVT-66-O
$158GA-79RVT — #TF-88-O — single 8Ω secondary — 2 3/8″ mounting centers
*This transformer is also used in the Gibson GA83-S and GA88-S amps
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FBLJR-OS
$1638kΩ primary, 4 & 8 Ω taps — **larger than stock OT
Bolt hole spacing is 3 9/16″, new mounting hole must be drilled
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ASB12-O
$233SB12 — #OT-215 — Drop-in Upgrade!
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A-GU12-O
$151GU12 — early ’70s
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A-JET12R-O
$151GU12 — early ’70s
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AJET-O
$151GU12 — early ’70s
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CRV-V16-O
$151Vintage 16– single 8Ω tap — two EL84 tubes — Upgrade!
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FHOTRDDV-O
$2274 kΩ primary, single 2Ω tap — bolt hole spacing 2″ x 3 3/8″
**For amps that have the 4 x 10″ speakers all wired in parallel
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FBFVL-O
$151Blackface — 8Ω tap
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FBLBND-O
$170Blonde — early ’60s — 8Ω tap
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FBFVL-OM
$163Blackface — 4, 8 & 16Ω taps
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FHOTRDV-O
$2272 x 12 — 4 kΩ primary, single 4Ω tap — 1 1/2″ larger lamination stack
Bolt hole spacing w/ L-bkts is 2 1/2″ x 3 1/8″ (“Especial” bracket is 2 1/4″ x 3 3/8″)
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CARV-3212-O
$2463212– 4, 8 & 16Ω taps — Upgrade!
Not finding what you’re looking for? We are constantly adding new products to our catalog – for the most up-to-date information, please email or call us: 818-998-7791.
Mercury offers Transformer Restoration Services for rare and vintage transformers that are failing or underperforming. With our attention to detail you can be assured that your restored vintage transformer will look AND sound exactly as it did. For more info please email or call us: 818-998-7791 for a quote.
