Featured Products

  • MBRKII-P

    Mesa Boogie | Road King II | Power Transformer

    Road King II — 120V usage — FatStack Upgrade!

    $363
  • Spec Sheet

    FDP-20X

    Fender | Deluxe (Blackface/Silverface-Reverb) | Power Transformer

    Blackface Reverb — FatStack — higher B+ — great for use with two 6L6 / KT66 / EL34 type tubes

    $205

All Results

  • O50JM-FS

    Marshall | 50 Watt | Output Transformer

    Plexi era — FatStack version for added low frequency extension and more clean headroom — Mounting Centers: 2-1/2″ X 3″

    $276

  • MAR-JCM1-PFS

    Marshall | JCM1 | Power Transformer

    1W Anniversary Model — Drop in Fatstack Upgrade!

    $152

  • FBFDR-O-FS

    Fender | Deluxe (65 Reverb Reissue), Deluxe (68 Custom Deluxe Reverb), Deluxe (Blackface/Silverface-Reverb) | Output Transformer

    FatStack Upgrade! — 8k primary — Single 8 Ohm Secondary

    $199

  • O20RS-FS

    Marshall, Radiospares | 20 Watt | Output Transformer

    FatStack with leads

    $315

  • PEAV-ROADM-P

    Peavey | Road Master | Power Transformer

    Road Master — FatStack Upgrade!

    $334

  • MESAB-DR2-P-240

    Mesa Boogie | Dual Rectifier | Power Transformer

    Dual Rectifier Double Channel — 240V usage — FatStack Upgrade!

    $368

  • MESAB-DR2-P

    Mesa Boogie | Dual Rectifier | Power Transformer

    Dual Rectifier Double Channel — 120V usage — FatStack Upgrade!

    $340

  • MESA-LONES-P-E

    Mesa Boogie | LoneStar | Power Transformer

    LoneStar — Drop-in FatStack Upgrade! — Universal Voltage Primary

    $368

  • MESAB-DUALR-P-120-240

    Mesa Boogie | Dual Rectifier | Power Transformer

    Dual Rectifier Triple Channel — FatStack Upgrade! — Universal Voltage Primary (with 100V tap)

    $345
  • Spec Sheet

    MESAB-DUALR-P

    Mesa Boogie | Dual Rectifier | Power Transformer

    Dual Rectifier Triple Channel– 120V usage — FatStack Upgrade!

    $328

  • MAR100-OS

    Marshall | DSL / TSL 100 | Output Transformer

    DSL / TSL — use with head ONLY! — SuperStack (see FatStack) — 4, 8 & 16Ω taps — 6L6 / KT66 / 6550 / KT88 tubes — Drop-in Upgrade!

    $315

  • MAR50-PT

    Marshall | DSL / TSL 50 | Power Transformer

    DSL/TSL — Drop-in Upgrade! — SuperStack (see FatStack)

    $310

  • P-CLASS-VTX-HER-OM

    Peavey | Classic VTX Heritage | Output Transformer

    Classic VTX Heritage — 2 & 4Ω taps — FatStack Upgrade!

    $282

  • FDP-20X-E

    Fender | Deluxe (Blackface/Silverface-Reverb) | Power Transformer

    Blackface Reverb — FatStack — higher B+ — great for use with two 6L6 / KT66 / EL34 type tubes — Universal Voltage Primary

    $229
  • Spec Sheet

    JETC-20W-OC

    Jet City | JET CITY 20 | Output Transformer

    Jet City JCA20 — 8 & 16 Ohm taps — Oversized FatStack Upgrade! — Uses Grain-Oriented Iron

    $216

  • MESAB-SUBWAYR-P

    Mesa Boogie | Subway Rocket | Power Transformer

    Rocket — 110V & 120V usage — Drop-in FatStack Upgrade!

    $170

  • FTDP-E-FS

    Fender | Deluxe (Tweed) | Power Transformer

    Tweed — FatStack — 100V, 120V, 220V, 230V & 240V primary — stock 380-0-380 unloaded B+

    $200

  • FMMB-PM-240

    Fender | Musicmaster Bass | Power Transformer

    Drop-in Upgrade! with a 2″ FatStack or iron! Dual B+ taps. Extra B+ tap is great for two 6L6 tubes — 220V, 230V & 240V primary

    $229

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.