Featured Products

All Results

  • O50JM-MM

    Marshall | 50 Watt | Output Transformer

    Plexi — KT88 / 6550 & 6L6 tubes

    $271
  • O45RS-L

    Marshall | 50 Watt | Output Transformer

    Leads (endbells available in most colors, including original vintage)

    $333
  • O45JT-16

    Marshall | 50 Watt | Output Transformer

    JTM45 — 4, 8 & 16Ω taps

    $309
  • O50-PLM

    Marshall | 50 Watt | Output Transformer

    6K primary

    $303
  • O45RS-L-8-M

    Marshall | 50 Watt | Output Transformer

    3.4K & 6.6K & 8K primary — 8Ω tap

    $352
  • PARK75-O

    Marshall | 50 Watt | Output Transformer

    ’69-’70 Park — 75 watt

    $257
  • O45RS-L-16

    Marshall | 50 Watt | Output Transformer

    3.4k, 6.6k & 8k primary — 16Ω tap

    $358
  • O45RS-L-16-M

    Marshall | 50 Watt | Output Transformer

    3.4K & 6.6K primary — 16Ω tap

    $352
  • MAR-9200-O

    Marshall | 50 Watt | Output Transformer

    9200 100/100 rack mount power amp OT — use with 5881 or EL34 tubes —

    Flat mount w/ lugs — 2 1/2″ x 3 1/8″ mounting centers

    $339
  • O50JM-M

    Marshall | 50 Watt | Output Transformer

    Plexi — use in the higher gain amp

    $271
  • MAR-50-50-O

    Marshall | 50 Watt | Output Transformer

    50/50 rack mount power amp — Drop-in Upgrade!

    $271
  • M-JVM205C-O

    Marshall | 50 Watt | Output Transformer

    50 Watt Combo — Drop-in Upgrade!

    $220
  • M-JVM215C-O

    Marshall | 50 Watt | Output Transformer

    JVM215C Combo — Drop-in Upgrade!

    $220
  • M-VM2266C-O

    Marshall | 50 Watt | Output Transformer

    Vintage Modern 2266C — Drop-in Upgrade!

    $271
  • MAR-50-50-OS

    Marshall | 50 Watt | Output Transformer

    50/50 rack mount power amp — Drop-in Upgrade!

    $290
  • MAR-9005-O

    Marshall | 50 Watt | Output Transformer

    9005 power amp — use with 5881 tubes — Sizes vary – Please contact us before ordering.

    $339
  • MAR50-VM50-O

    Marshall | 50 Watt | Output Transformer

    Vintage Modern 50W — Upgrade! Use with two EL34/KT77 type tubes

    $233
  • MAR50-VM50-OS

    Marshall | 50 Watt | Output Transformer

    Vintage Modern 50W — 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.