Tweed Champ® 5F1 Style Amplifier Kit

3 Reviews
Weight: 9.8 lb
Sale Unit: Piece

In Stock


Kit Build Difficulty:


If this kit shows as out of stock please check here for more information.

Please read our article 'Mojotone Amp Kit Building Primer' along with our amp kit disclaimer located in the Specs tab before buying this kit.


Mojotone’s Tweed Champ Style Amp Kit is based on the beloved 5 watt amp from the 1950s. These amps were perfect for recording and were featured on a wide array of recordings from Joe Walsh’s “Rocky Mountain Way” all the way to Derek & the Dominos’ “Layla.” Modeled after the historic Class-A 6V6 platform, this amp delivers warm tones that are harmonically rich and have a beautiful low volume crunch.



  • Class Type:A All Tube Amplifier
  • Output:~5 Watts
  • Circuit:5F1
  • Bias Type:Cathode Biased
  • Build Time:~4 hours
  • Preamp Tubes:JJ ECC83/12AX7 (1)
  • Output Tube(s):JJ 6V6 (1)
  • Rectifier Tube:JJ 5Y3
  • Transformers:Power - Champ Power (MOJO760EX), Output - Champ (NOS771)
  • Hardware:Tweed Champ Small Parts Kit, Tweed Champ Chassis, 10' Install Power Cord

Disclaimer: Some of the parts contained in this kit are subject to availability.

Mojotone reserves the right to change or substitute any and all of the parts contained in this amplifier kit without advertisement or notification to the buyer. Part substitutions made by Mojotone are guaranteed not to affect the integrity or operation of your amplifier kit. Time estimates listed are from start to finish. If you are new to tube amplifiers, additional time may need to be factored.


When purchasing a kit from Mojotone, you will receive the following documentation.

1. Schematic

2. Wiring Diagram / Layout

Our beginner level kits such as the tweed champ and tweed deluxe include a manual. If you purchase a kit from Mojotone and do not receive these documents, you can obtain copies by emailing or calling 800-927-6656. The Mojotone staff is available Monday through Friday from 8:30 a.m. to 5:00 p.m. EST unless otherwise closed.


Mojotone kits include the best quality parts that are available at the time of purchase. If a substitution is required, our team will use parts that are of equal quality to ensure the integrity of the kit build remains the same.


Building a fully functional amplifier kit is not an easy task. Before building a kit, one should have the ability to properly solder as well as read and understand a schematic and wiring diagram. While we do our very best to ensure all documentation is current, the included documentation is meant to serve as an overall guide to building the amplifier. Simply following the schematic and wiring diagram does not guarantee you will have a fully functional amplifier. In fact, post build troubleshooting is a common issue across all builds.


Our staff is available to assist with basic troubleshooting needs. There are plenty of online videos available that are helpful with most post build issues. Technical staff is available via email by sending a message to You may also call our sales team to discuss build problems, dial 800-927-6656 and press 1 for sales.


Building a tube amplifier takes time, dedication, resources and most importantly... Skills! The experience of building an amp can come with some frustration, the reward of completing the build is definitely well worth your time. Please review the wiring diagram, schematic and manual (if applicable) prior to making your purchase. Mojotone will not accept any returns on amplifier kits and/or parts that have been assembled, soldered or modified.

This amp kit also comes with the following documents. Please feel free to view and/or download them:
Tweed Champ Schematic
Tweed Champ Wiring Diagram
Tweed Champ Manual

Click HERE to view an image of this chassis completed in accordance with the schematic provided above.

Ratings & Reviews

3 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews
7/12/2022 9:13 am

Top Notch Everything

by Richard -

Top quality components along with excellent documentation and stellar support. The build quality of the cabinet was exceptional. I did not notice it at first but even the Tweed pattern lined up with the panels on the back of the cabinet. This is a step above anything else I've seen. If this much effort goes into the little things you know the important things are taken care of too.

6/5/2022 11:00 pm

Very good kit, great service, instructions could be a touch better

by Michael Buncher -

Mojotone had great communication. The kit itself was packaged well and the parts were quality. This was my first kit and it fired up on the initial switch on, though my voltages were a touch lower than the layout reads. It amplifies and I am thrilled with this kit for that reason.

I did take one star away because I think a few minor adjustments could make this kit perfect.

I needed more 18-gauge green cloth wire. I didn't have any for the filaments from the 6v6 to the 12ax7. Ended up using transformer wire cutoffs, hope that isn't a problem!

Speaking of filament wires, I wish I had made the green twisted wire go between the boards prior to installing the boards. Was a pain to get that in after.

A few other minor issues but by and large, great kit!

Thanks, Mojotone!!!