Jimi Hendrix's tones from his Marshall amps are still some of the most sought after tones by guitarists today, more than 50 years after his passing. Over the years, bit by bit, information started surfacing on the internet regarding Hendrix's amps.

One of the biggest breaks came when Dave Weyer, an engineer who worked at West Coast Organ and Amplifier Service back in the 60s and 70s, revealed that he worked on, and modded, many of Hendrix's amps back then, together with proof and information that are hard to dispute.

One of the mods that he regularly did for Hendrix was using 6550 tubes (instead of EL34s) in the Marshalls, along with mods for both reliability (a big issue at the time, especially for extensively touring musicians playing at arena volumes), as well as tone.

The Ceriatone West Coast Mod Plexi is offered based on some of the above information. Name a Super Lead is modified to use 6550 tubes, using custom transformers to run the amp to specs Dave Weyer recommended. The amp was used, amongst others, at Woodstock and many other venues and recordings.

We decided to run the amp with about 600V plates, and 300V screens, with an oversized and extremely well regulated power transformer, into approx. 5K ohms output transformer.

Of importance is biasing the amp cold, at about 25mA, for Class B operation, which is essential for the tone. We have also added a Post PI master volume (PPIMV) as we realize that the opportunity of playing full tilt boogie with such a powerful amp is not common these days.

Whether you are a die hard Hendrix fan, or just a guitarist looking for a great, inspiring tone, this amp will definitely deliver what you are seeking.

Comes with the highest quality components, as is with all Ceriatone products, and with hand wired turret boards just like the originals!

West Coast Mod JH Features:

Dual Channel (Bright / Normal) with Dual Inputs (High / Low Gain)
Power: 100+ watts
Power: 4 x 6550
Preamp: 2 x 12AX7, 1 x 12AT7
Rectifier: Solid State
Passive Effects Loop
Full / Half Power Switch
External Bias Probe Jacks & Adjustment Standard

West Coast Mod JH Configuration Options:

  • Chassis I - $1,338.50
    (Fully working chassis. Tubes not included.)
  • Chassis II - $1,599.50
    (Fully working chassis. Tubes included.
  • Amp Head I - $1,544
    (Fully working chassis installed in a head cabinet. Tubes not included.)
  • Amp Head II - $1,805
    (Fully working chassis installed in a head cabinet. Tubes included.)

Main photo is for illustrative purposes only and advertised base pricing is for Chassis I without tubes. Photos may include options that are not included if you order the standard version of the amp or don't order all options available. We also may not offer all options available and/or shown in main illustrative photos. Photos are of products assembled by Ceriatone. We no longer sell kits. Black Tolex is standard on all amps unless otherwise stated in product description.

Ceriatone amps are custom made, 100% hand-built, point-to-point hand-wired amplifiers using the highest quality components and custom wound transformers. Each amp is thoroughly tested and burned in before it is shipped to you. Even with long lead times Ceriatone takes no shortcuts or makes any changes to their build standards in the production of their hand-built amps. This is Ceriatone quality.

Pricing shown on www.guitarampsusa.com includes the shipping cost to the USA only. We only ship to the USA, Canada and Mexico. Shipping to Canada, Mexico, Puerto Rico and the US Virgin Islands will have additional shipping. We'll invoice the difference in shipping and it is due at the time the order is placed.

Paypal is our payment processor and you do not need a Paypal account to check out. They do offer 4 types of payments. Any Debit/Credit card with one click pay, PayPal 4-Pay, use your Paypal account, or use PayPal Financing (6/12/24 months) at checkout.

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West Coast Mod JH

  • $1,338.50

Available Options

Tags: West Coast Mod JH, Jimi Hendrix, ceriatone, marshall, plexi