Featured Products

  • O45RS-L-8

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

    Radiospares — leads — 8k primary — standard RS secondary

    $352

  • O18RS-FS

    Marshall, Radiospares | 18 Watt | Output Transformer

    FatStack with leads

    $339

All Results

  • O20RS-SS

    Marshall, Radiospares | 20 Watt | Output Transformer

    With lead wires — SuperStack — Uses Grain-Oriented Iron

    $377

  • O20RS-L

    Marshall, Radiospares | 20 Watt | Output Transformer

    20 watt with Leads

    $320

  • O20RS-FS

    Marshall, Radiospares | 20 Watt | Output Transformer

    FatStack with leads

    $339

  • O100RS-L

    Marshall, Radiospares | 100 Watt | Output Transformer

    Single 16Ω secondary tap

    $440

  • O100RS-LM

    Marshall, Radiospares | 100 Watt | Output Transformer

    2.1K & 3.3K primary — 8 & 16Ω taps

    $472

  • P45RS-M

    Radiospares | 45 Watt | Power Transformer

    Lower B+ — Universal Voltage Primary — dual 6.3V filament windings — no 5V rectifier winding — vertical mount ONLY!

    $371

  • P45RS

    Radiospares | 45 Watt | Power Transformer

    As used on JTM45 — 350V – 0 – 350V B+ with dual 6.3VCT winds and a 5V filament winding.

    $359

  • P45RS

    Radiospares | 45 Watt | Power Transformer

    JTM45 – Lower B+ — 350V – 0 – 350V B+ with dual 6.3VCT winds and a 5V filament winding.

    $359

  • P18RS-M

    Marshall, Radiospares | 18 Watt | Power Transformer

    Lower B+

    $314
  • Spec Sheet

    P18RS

    Marshall, Radiospares | 18 Watt | Power Transformer

    PT with Lug terminals like the original

    $296
  • Spec Sheet

    O60RS-L

    Marshall, Radiospares | 60 Watt | Output Transformer

    Large 60 watt — 3.4K, 6.6K & 8K primary — single 16Ω secondary tap

    $371
  • Spec Sheet

    O45RS-L

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

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

    $333

  • P18RS-SL

    Marshall, Radiospares | 18 Watt | Power Transformer

    Leads with short stack

    $303

  • RS-DELUXE-EL84-2X4

    Radiospares | 18 Watt, 20 Watt, 45 Watt | Output Transformer

    4K & 8K primaries — for use with two or four EL84s or 6V6s

    $314

  • RS-DELUXE-EL84-2X4

    Radiospares | 18 Watt, 20 Watt, 45 Watt | Output Transformer

    4K & 8K primaries — for use with two or four EL84s or 6V6s

    $314
  • Spec Sheet

    O45RS-L-8-M

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

    3.4K & 6.6K & 8K primary — 8Ω tap

    $352
  • Spec Sheet

    O45RS-L-16-M

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

    3.4K & 6.6K primary — 16Ω tap

    $352
  • Spec Sheet

    O45RS-L-16

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

    3.4k, 6.6k & 8k primary — 16Ω tap

    $358

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.