CLASSIC TONE USA/TUBE AUDIO SUPPLY 40-18000 Marshall Jcm Set Plexi Transformer 40-18024 40-18026

( Brand: Classic Tone Usa/tube Audio Supply ), ( Manufacturer Part Number: 40-18000 ), ( Part Type: Transformer ), ( Amplifier Type: Marshall ), ( Country Of Origin: United States ), ( Suitable For: Electric Guitar ), ( Power: 100 W ), ( Product Line: Marshall 800 ), ( Amplifier Technology: Vacuum Tube )

Review CLASSIC TONE USA/TUBE AUDIO SUPPLY Marshall 800 Jcm Plexi 100 Watt Transformer Set

Introducing the classic tone USA/Tube Audio Supply 40-18000 Marshall 800 JCM Plexi Transformer Set, comprised of transformers 40-18024 and 40-18026. This transformer set is specifically designed for Marshall's iconic JCM800 2203 and 2204 circuit, better known as the "Plexi" series. These transformers are essential for delivering the unique and coveted tone that has made Marshall amplifiers legendary in the world of rock and roll.

The 40-18000 set includes two transformers: a primary power transformer (40-18024) and a secondary output transformer (40-18026). Both components are meticulously crafted using high-quality, vintage-style materials and construction techniques to ensure authentic tone and reliability.

The primary power transformer (40-18024) is responsible for converting the electrical power from the wall outlet to the voltage and current required by the amplifier circuit. With a robust power handling capacity and a focus on maintaining a stable voltage level, this transformer ensures that the amp receives a consistent power supply, enabling optimal performance and tone.

The secondary output transformer (40-18026) plays a crucial role in shaping the tone of the amplifier by converting the high voltage from the primary transformer to the lower voltages and currents that the amplifier components require. This transformer set is designed to perfectly match the impedance and winding configuration of the original Marshall JCM800 transformers, ensuring that your amplifier delivers the classic Plexi tone that is sought after by guitarists worldwide.

Each transformer in this set is hand-wound with care, using premium quality wire and core materials. The transformers are also fitted with vintage-style paper insulation to provide a more natural, organic sound compared to modern plastic insulation. Additionally, these transformers feature copper wire secondary windings, which offer superior signal transfer and tonal clarity.

By installing the classic tone USA/Tube Audio Supply 40-18000 Marshall 800 JCM Plexi Transformer Set in your JCM800 amp, you'll be able to experience the authentic tone and character that has made this iconic amplifier a staple in the world of rock music. Whether you're playing classic rock, blues, or any other genre, this transformer set will help your amp deliver the rich, harmonically complex sound that you've been looking for.

In summary, the classic tone USA/Tube Audio Supply 40-18000 Marshall 800 JCM Plexi Transformer Set is a must-have for any guitarist seeking to authentically recreate the iconic tone of the legendary Marshall JCM800 Plexi amplifier. Handcrafted with care using premium materials and vintage construction techniques, these transformers deliver a rich, harmonically complex sound that is unmatched by modern alternatives. Upgrade your amp today and join the ranks of legendary guitarists who have come to rely on the classic Marshall Plexi tone.

The Marshall JCM 800 Plexi transformer set (model numbers 40-18024 and 40-18026) is a popular choice among guitar enthusiasts for its classic tone. Here are some pros and cons of buying this transformer set:

1. Authentic Plexi Tone: These transformers are known for delivering the classic Plexi tone that is sought after by many guitar players.

2. Tube-Like Sound: The transformers provide a tube-like sound, making your amp's tone richer and more dynamic.

3. Improved Headroom: The transformers offer improved headroom, allowing you to achieve better clean tones and increased sustain.

4. Versatile: The transformers can be used in various Marshall amps, including the JCM 800, JCM 900, and JVM series.

5. Durable: The transformers are built with high-quality components, ensuring long-lasting performance.

1. Expensive: The transformer set can be quite pricey, which may not be affordable for all guitar players.

2. Complex Installation: Installing the transformers requires some technical knowledge and experience, as it involves wiring and soldering.

3. Potential for Hum and Noise: Some users have reported experiencing hum and noise issues after installing the transformers.

4. Risk of Damage: Handling and installing transformers can be risky, as they are delicate components that can be easily damaged if mishandled.

The Marshall JCM 800 Plexi transformer set (40-18024 and 40-18026) is an excellent choice for guitar players looking for an authentic Plexi tone and improved headroom. However, the high price tag, complex installation process, and potential for hum and noise may deter some users. If you are confident in your technical abilities and have the budget for it, this transformer set can significantly enhance the tone and performance of your Marshall amp.

If you are considering purchasing the Marshall JCM 800 Plexi transformer set, make sure to do thorough research on the installation process and consult with a qualified technician to ensure a successful installation. Additionally, consider purchasing the transformers from a reputable dealer to ensure their authenticity and quality.

Details:

The Marshall 800 JCM Plexi JMP 100 Watt CLASSIC TONE TRANSFORMER set. Includes Classic Tone Power, Output and Choke transformers, plus chassis. POWER 40-18024 OUTPUT 40-18026 CHOKE 40-18032 120mA, 5 Henry Chassis .080 Aluminum 24 x 8 2.5, New old stock set. These don't turn up often.

part #: 4018000 price

• $450.00

specifications guitoamps:

• brand: Classic Tone Usa/tube Audio Supply
• mpn: 40-18000
• part type: Transformer
• amplifier type: Marshall
• country of origin: United States
• suitable for: Electric Guitar
• power: 100 W
• product line: Marshall 800
• amplifier technology: Vacuum Tube

offer guitoamps:

• options: Ship-to-home
• sold: 0
• quantity: 1
• best offers: True
• availability: In Stock
• started: May 15, 2026

shipping guitoamps:

• transit: 6-11 Days
• service: USPS Ground Advantage
• type: Calculated
• carrier: USPS
• class: Standard
• cost: $0.00

seller guitoamps:

• city: Lincoln, Maine
• # reviews: 3180
• rating: 99.4%

returns guitoamps:

• policy: No Returns

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• wallet: Google-pay
• other
• credit card: Visa

general guitoamps:

• Musical Instruments Gear > Guitars Basses > Guitar Amplifiers
• condition: New

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