All Results

  • Spec Sheet

    FO50BM-2M

    Fender | Bassman | Output Transformer

    ’59 Tweed — 4 kΩ primary, 4 & 8Ω taps

    Bolt hole spacing w/ “Especial” bracket is 2″ x 3 3/8″ (L-bkts is 2 1/4″ x 3 1/8″)

    $239

  • MESA-HEARTB-O

    Mesa Boogie | Heartbreaker | Output Transformer

    4,8 & 16 Ohm taps — Upgrade — #562105

    *Correct OT for Blue Angel amp also, use your original end bells

    $366
  • Spec Sheet

    MAR50-O

    Marshall | DSL / TSL 50 | Output Transformer

    DSL / TSL — 50 Watt Combo (or Head) —  TXOP 00030 (D5240)

    3.3 kΩ primary — flat mount w/ lugs — Bolt hole spacing is 2 1/2″ x 3 1/8″

    $208

  • O45JT

    Marshall | 45 Watt, 50 Watt, JTM45 | Output Transformer

    JTM45 — 8 & 16Ω taps — 100V secondary tap

    $303

  • B52-60-O

    B-52 | 60W | Output Transformer

    Upgrade! Use with two EL34/KT77 type tubes — 4, 8 & 16Ω taps

    $271

  • JK-O

    Jim Kelley | Output Transformer

    4 x 6V6 tubes — 2 & 4Ω taps

    $208
  • Spec Sheet

    O50JM

    Marshall | 50 Watt | Output Transformer

    Plexi/JMP Era — Drake 784 139 — 3.3 kΩ primary, 4, 8, & 16 Ω taps

    For 2 x EL34’s — bolt hole spacing is 2 1/2″ x 2 1/2″ — replaces original OT !

    $271

  • O50JM-SL

    Marshall | 50 Watt | Output Transformer

    Plexi — self leads

    $303
  • Spec Sheet

    O45JT-16

    Marshall | 45 Watt, 50 Watt, JTM45 | Output Transformer

    JTM45 — 4, 8 & 16Ω taps

    $309
  • Spec Sheet

    FO50BM-3

    Fender | Bassman | Output Transformer

    ’57 Tweed — smaller size — #2485

    $208

  • PEERLESS-16497-O

    Altec / Peerless | 16497, MISC. | Output Transformer

    Peerless / Altec Lansing (rare!) — 4, 8 & 16Ω taps with 70V tap — 5K primary

    $320

  • B52-60-OM

    B-52 | 60W | Output Transformer

    Upgrade! Use with two 6L6/5881/KT66/6550/KT88 type tubes — 4, 8 & 16Ω taps

    $303
  • Spec Sheet

    DYNA-A-470-O

    Dynaco | A470 | Output Transformer

    Dynaco A470 — 4, 8 16Ω taps — UL taps

    $257
  • Spec Sheet

    JIMK-O

    Jim Kelley | MISC. | Output Transformer

    4 x 6V6 tubes — 4 & 8Ω taps

    $208
  • Spec Sheet

    O50JM-MM

    Marshall | 50 Watt | Output Transformer

    Plexi — for KT88 / 6550 (& 6L6) tubes — 5.9 kΩ primary

    Vertical mount, bolt hole spacing is 2 1/2″ x 2 1/2″

    $271
  • Spec Sheet

    VXO-30H

    VOX | AC30 | Output Transformer

    Haddon version — circa 1963 — 3.7 kΩ primary, 8 & 16 (15) ohm taps

    Flat mount (into hole in chassis), bolt hole spacing is 2 1/2″ x 3 1/8″

    As a vertical mount, will fit the AC30C2(X) and other reissues – inquire!

    $303

  • F75-OT

    Fender | 75 | Output Transformer

    Early ’80s– 2, 4 & 8Ω secondary — UL taps — Drop-in Upgrade!

    $284
  • Spec Sheet

    FBFBM-O

    Fender | Bassman | Output Transformer

    Blackface — 1-1/2″ larger stack — #125A13A

    $214
  • Spec Sheet

    FO50BM-1

    Fender | Bassman | Output Transformer

    Blonde — 4kΩ primary, single 4Ω tap — 1-1/2″ larger stack — #125A13A

    Bolt hole spacing w/ L-bkts is 2 1/2″ x 3 1/8″ (“Especial” bracket is 2 1/4″ x 3 3/8″)

    $208
  • Spec Sheet

    JIMK-OM

    Jim Kelley | MISC. | Output Transformer

    4 x 6V6 tubes — 4, 8 & 16Ω taps

    $239

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.