Classic British 18W Tube Guitar Amp Kit - Head |

Classic British 18W Tube Guitar Amp Kit - Head


Free Shipping Over $99*

  • Kit british18whead 5
  • Kit british18whead 6
  • Kit british18whead 8
  • Kit british18whead 7

This is the perfect kit for both a first project as well as for the seasoned builder. This kit, which includes everything you'll need to complete the amp, can be constructed in three to four evenings with astounding results.

Here are some reviews and pictures of happy kit builders with their Tube Kits

This British 18W kit is our nod to the original 18 watt. With turret board, point-to-point construction, quality components, and just a touch of American upgrading, this kit is ready to become your sound.

For a detailed list of what is included, download the manual below.

This great kit can be customized by you with upgraded parts. Or it can be ordered without the cabinet and / or speaker. Let us give you a quote.

It is sometimes necessary for to substitute certain parts contained in a kit without prior notification. This is most often due to parts availability and/or to improve the performance of the kit. All substitutions are made with careful thought and we gladly encourage questions regarding parts substitutions you may have received.

Make sure to read some of the Kit Reviews from our customers.

    Please Log In or Sign Up to leave a review of this product.

    I have always wanted to build my own amp and after many years of stalking this site, I finally purchased the British 18w head kit. I've never built an amp before but was decent at soldering and in prep, I watched all of the Tube Depot soldering and how to build videos. The instructions were spot on and wiring diagrams invaluable. The amp sounds better than I would have ever imagined and seems to be sounding better as it breaks in. I can't wait to build my next one!

    reviewed by: Rob Foster

    I recently completed the British 18W head kit from Tube Depot, and can't say enough good things about it! From start to finish, the kit exceeded my expectations. Ordering, shipping, and customer service were top-notch. No issues with components. The instructions and documentation were amazing, worth their weight in gold.

    The end result was an amplifier that sounds incredible! I incorporated a few of the suggested options- PPIMV, Tremolo HI/LO sw., Tube/SS Rectifier sw., and choke. The sound is amazing, I'm finding it very difficult turning the amp off- once I start playing through the amp I don't want to stop.

    I would absolutely recommend Tube Depot for anyone interested in building a guitar amplifier. The clear, well-written instructions really made this an enjoyable project. This was my first amplifier build, and I had no issues thanks to the great documentation.

    reviewed by: Dave R

Head Kit Includes:


  • Tubes - 1 Pair JJ EL84, 3 JJ 12AX7, and 1 JJ EZ81 rectifier tube.
  • EF86 Upgrade Kit - Parts to upgrade to the EF86 are included, except tube.
  • Resistors - Low noise, high tolerance Dale metal film and Xicon metal oxide resistors.
  • Coupling capacitors - High voltage, full clarity Mallory 150 capacitors.
  • Electrolytic capacitors - High temperature, tight tolerance electrolytic filter capacitors.
  • Wire - High temperature, high voltage stranded wire. Easy to work with and resists melting.
  • Output Transformer - USA made with connections for either 4 or 8 ohm speaker cabinets.
  • Power Transformer - USA made traditional construction with high temperature wire. Taps for: 100V / 117V / 220V / 230V / 240V
  • Great sounding variable tremolo.
  • Cabinet - 3/4" solid pine with full finger joints for strongest construction.
  • Baffle board - Void and resonant free birch plywood provides tightest low end response.
  • Back Panel - Fully shielded to further reject 60 Hz hum.
  • Chassis - Stamped Aluminum with a reproduction of original faceplates.
  • Speaker jack - 1/4" for easily connecting to other speaker configurations.
Get Sale Notifications