All Results

  • FMMB-PM

    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.

    $187

  • P-CLASS30-P-U

    Peavey | Classic 30 | Power Transformer

    Classic 30  — FatStack Upgrade! — Universal Voltage Primary

    $217

  • O18RS-SS

    Marshall, Radiospares | 18 Watt | Output Transformer

    With lead wires — SuperStack (see FatStack) — Uses Grain-Oriented Iron

    $350

  • JETC-20W-P

    Jet City | JET CITY 20 | Power Transformer

    Jet City 20 watt — Drop-in Upgrade! — FatStack with Universal Voltage Primary

    $229

  • O18RS-FS

    Marshall, Radiospares | 18 Watt | Output Transformer

    FatStack with leads

    $315
  • Spec Sheet

    P-CLASS30-P

    Peavey | Classic 30 | Power Transformer

    Classic 30 — FatStack Upgrade! — Single 120V Primary

    $187
  • Spec Sheet

    EG-TWK-OS

    Egnater | Tweaker 15 | Output Transformer

    Tweaker 15 — 4, 8 & 16Ω taps — FatStack Upgrade!

    $199

  • P-CLASS20-P-240

    Peavey | Classic 20 | Power Transformer

    Classic 20 — 220V, 230V & 240V primary — FatStack Upgrade!

    $205

  • P-CLASS20-P

    Peavey | Classic 20 | Power Transformer

    Classic 20 — FatStack Upgrade!

    $176

  • P-DELTAB-P-U

    Peavey | Delta Blues | Power Transformer

    Delta Blues — FatStack Upgrade! — Universal Voltage Primary

    $217

  • P-DELTAB-P

    Peavey | Delta Blues | Power Transformer

    Delta Blues — FatStack Upgrade!

    $187

  • MBRK-P

    Mesa Boogie | Road King | Power Transformer

    MESA Part Number #561160 — 120V usage — FatStack Upgrade!

    $350

  • JETC-JCA22-OC

    Jet City | JCA22 | Output Transformer

    Jet City JCA22 — 8 & 16 Ohm taps — Oversized FatStack Upgrade! — Uses Grain-Oriented Iron

    $216

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.