All Results

  • GA75-O

    Gibson | GA-75 | Output Transformer

    GA-75 — Crestline amp

    $182

  • GA79-RVT-66-O

    Gibson | GA-79 | Output Transformer

    GA-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

    $158

  • GA79-RVT-O

    Gibson | GA-79 | Output Transformer

    GA-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

    $158

  • GA8T-O

    Gibson | GA-8 | Output Transformer

    GA-8T — single 8 Ohm tap

    $125

  • GA95-RVT-O

    Gibson | GA-95 | Output Transformer

    60’s — Original PN TF-503-O

    $201

  • GIB-GA30LP-O

    Gibson | GA-30 | Output Transformer

    GA-30 — Les Paul OT with primary leads and secondary lugs.

    $177

  • GIB-KALAMAZOO-O

    Gibson | KALAMAZOO | Output Transformer

    Kalamazoo Reverb 12 — two EL84 tubes — single 8Ω secondary tap

    $132

  • GIB-SCOUT-O

    Gibson | GA-17 | Output Transformer

    GA17RVT — single 8Ω tap — #TF-18-01 — 2 3/8″ mounting centers

    $114

  • GUILD-THUN1-RV-O

    Guild | Thunder One Reverb | Output Transformer

    Guild Thunder One Reverb — 8k primary — 8Ω secondary

    $158

  • HI-20-O

    Hiwatt | 20 Watt | Output Transformer

    20 watt — 4, 8 & 16 Ohm taps — Upgrade!

    $309
  • Spec Sheet

    HI200-O

    Hiwatt, Partridge | 200 Watt | Output Transformer

    ’70s 200 watt — model DR-201 — Partridge transformer design

    #TG 7239 —  vertical mount, bolt hole spacing is 3 1/2″ x 3″

    $534
  • Spec Sheet

    HI50-O

    Hiwatt | 50 Watt | Output Transformer

    50 watt — Partridge TG 6556/2 (H6162 J) –3.8 kΩ primary, 8 & 16 Ω taps

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

    $313

  • HI50-OC

    Hiwatt | 50 Watt | Output Transformer

    50 watt — 4, 8 & 16 Ohm taps

    $314

  • HI50-OV

    Hiwatt | 50 Watt | Output Transformer

    Earliest 50 watt — UL taps — 8 & 16 Ohm secondary taps. Within the first 12 Hiwatts built — Partridge transformer design

    $352
  • Spec Sheet

    HK-PURET-OT

    Hughes and Kettner | Puretone | Output Transformer

    Hughes & Kettner Puretone — 4, 8 and 16 Ohm taps — Drop-in Upgrade!

    $290

  • HK-TUBEMEISTER-18-O

    Hughes and Kettner | Tubemeister 18 | Output Transformer

    Hughes and Kettner Tubemeister 18 — 8 Ohm tap– Drop-in Upgrade!

    $158

  • JCM900-100-O

    Marshall | JCM900 | Output Transformer

    JCM900 — Superstack — 3″ tall — with lugs (no lead wires)

    1.7k Ω primary — Flat mount, hole spacing 2 1/2″ x 3 1/8″

    *For Head only! — combo amp use MAR100-O

    $339

  • JCM900-100-OM

    Marshall | JCM900 | Output Transformer

    JCM900 — Superstack — 3″ tall — with lugs (no lead wires)

    3k Ω primary w/ 4, 8 & 16 Ohm taps –use 6L6 / KT66 / 6550 / KT88 tubes

    Flat mount, hole spacing 2 1/2″ x 3 1/8″ — *For Head only!

    $352

  • JCM900-50-O

    Marshall | JCM900 | Output Transformer

    JCM900 — 50 Watt Drop-in Upgrade!

    $208

  • JCM900-50-OM

    Marshall | JCM900 | Output Transformer

    Drop-in 50 Watt Upgrade! Use with two 6L6/5881/KT66/6550/KT88 type tubes

    $271

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.