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Products > Full Revalve Kits

These full revalve kits use specially chosen valves to help you attain the sound that you are looking for from your amplifier. The valves have been specially chosen for their sound characteristic. They are specially position matched as to their function in your amplifier. They are selected for gain, triode balance, low noise and microphonics. These kits are backed by over 25 years of experience in selecting pre amp valves for professional musicians who trust their sound to Watford valves.

• NameBrandCommentStockPrice PhotoOrder
• Dr Z Route 66 GEC KT66 EF86 Mullard Ultimate Upgrade Kit Limited EditionDR Z Full Revalve KitsOriginal UK made GEC & Mullard Valves
  
  You own one of the best KT66 amps in the world so this kit is designed to ...In stock£665.00Buy Now
• Universal Audio 2 LA 2A Twin Levelling Amplifier USA Valves Full Upgrade KitUniversal Audio Full Revalve KitsUniversal Audio LA 2A twin Full revalve kit consists of a set of 8 selected original American made valves to provide ...In stock£550.00Buy Now
• Mesa Bass 400+ Classic 6L6GC Groove Tube GE Full Upgrade KitMesa Boogie Full Revalve KitsThis full revalve kit consists of specially selected Harma ECC83 Retro pre amp valves and Groove tube 6L6GC GE reissue ...In stock£535.00Buy Now
• The Earlybird 4 Four Channel 12AX7WA GE Philips 5814A Full Upgrade KitThermionic Culture Upgrade KitsThermionic Culture Earlybird 4 four channel Mic pre amp Full Upgrade kit consists of a set of 8 selected USA made ...In stock£520.00Buy Now
• Mesa Bass 400+ Harma Classic 6L6GC Retro Full Upgrade KitMesa Boogie Full Revalve KitsThis full revalve kit consists of specially selected Harma Retro valves for Mesa Boogie amplifiers. This set has been ...In stock£511.00Buy Now
• Ampeg SVT VR Harma ECC83 Retro Classic 6550 JJ Full Upgrade KitAmpeg Full Revalve KitsAmpeg SVT Vintage Reissue Classic Retro Full upgrade kit is designed to give your SVT Vintage Reissue head the sound of ...In stock£468.00Buy Now
• Mesa Bass 400+ Harma Vintage 5881 Full Upgrade KitMesa Boogie Full Revalve KitsThe Harma 12AX7WA Vintage and 5881 upgrade kit has been designed to give you an outstanding clean sound with midband ...In stock£434.00Buy Now
• Ampeg SVT 2 Pro Harma ECC83 Retro Classic 6550 JJ Full Upgrade KitAmpeg Full Revalve KitsSpecial Offer 10% Discount
  
  Ampeg SVT 2 Pro Classic Retro Full revalve kit is designed to give your SVT 2 Pro a ...In stock£479.00
  £431.10Buy Now
• Marshall VBA 400 Classic 6550 JJ Full Upgrade KitMarshall Amp Full Revalve Kits
  
  Special Offer 10% Discount
  
  The Marshall VBA 400 Classic JJ full upgrade kit is specially selected for ...In stock£477.00
  £429.30Buy Now
• Mesa Bass 400+ Harma STR 5881 Full Upgrade Kit Mesa Boogie Full Revalve KitsThis kit is for the Mesa 400 Plus bass head which was originally fitted with Mesa STR 425/5881 and offers an upgrade ...In stock£428.00Buy Now
• Ampeg SVT 2 Pro Harma 7025 6550 JJ Full Upgrade KitAmpeg Full Revalve Kits
  
  Special Offer 10% Discount
  
  The Harma 7025 STR JJ upgrade kit is designed to give your SVT 2 Pro head a ...In stock£468.00
  £421.20Buy Now
• Ampeg SVT VR Harma 7025 6550 JJ Full Upgrade KitAmpeg Full Revalve Kits
  
  Special Offer 10% Discount
  
  Ampeg SVT Vintage Reissue Harma 7025 upgrade kit is designed to give your ...In stock£464.00
  £417.60Buy Now
• Ampeg SVT CL Harma ECC83 Retro Classic 6550 JJ Full Upgrade KitAmpeg Full Revalve KitsThe Ampeg SVT Classic reissue head fitted with our Retro classic full revalve kit is designed to give your SVT Classic ...In stock£407.00Buy Now
• Marshall VBA 400 KT88 JJ Full Revalve KitMarshall Amp Full Revalve KitsSpecial Offer 10% Discount
  
  Our JJ revalve kits consist of specially selected set of JJ preamp valves combined ...In stock£452.00
  £406.80Buy Now
• Hiwatt DR401 400 Bass Head STR KT88 JJ Full Upgrade KitHiwatt Full Revalve KitsSpecial Offer 10% Discount
  
  This full revalve kit is designed to give you the maximum clarity and bass note ...In stock£452.00
  £406.80Buy Now
• Marshall VBA 400 Harma STR Ruby 6550A Full Upgrade KitMarshall Amp Full Revalve KitsLAST SET
  
  Special Offer 10% Discount
  
  The Marshall VBA 400 Harma STR Ruby 6550A full upgrade kit is ...In stock£452.00
  £406.80Buy Now
• Mesa Triple Rectifier Harma Classic 6L6GC Retro Full Upgrade KitMesa Boogie Full Revalve KitsSpecial Offer 10% Discount
  
  This full revalve kit consists of specially selected Harma Retro valves for Mesa ...In stock£437.00
  £393.30Buy Now
• Mesa Strategy Eight 88 Harma STR KT88 JJ Full Upgrade KitMesa Boogie Full Revalve KitsSpecial Offer 10% Discount
  
  This full revalve kit is designed to give you the maximum clarity and bass note ...In stock£436.00
  £392.40Buy Now
• Mesa Triple Rectifier STR Groove Tube 6L6GC GE Full Upgrade KitMesa Boogie Full Revalve KitsSpecial Offer 10% Discount
  
  This full revalve kit consists of a standard gain Harma STR Pre amp kit combined with ...In stock£434.00
  £390.60Buy Now
• Ampeg SVT VR Harma STR 6550 JJ Full Upgrade KitAmpeg Full Revalve Kits
  
  Special Offer 10% Discount
  
  Ampeg SVT Vintage Reissue Harma STR full upgrade kit is designed to give your ...In stock£432.00
  £388.80Buy Now
• Ampeg SVT 2 Pro Harma STR 6550 JJ Full Upgrade Kit Ampeg Full Revalve Kits
  
  Special Offer 10% Discount
  
  The Harma STR JJ upgrade kit is designed to give your SVT 2 Pro a clean sound ...In stock£428.00
  £385.20Buy Now
• Marshall VBA 400 6550 JJ Full Revalve KitMarshall Amp Full Revalve Kits
  
  Special Offer 15% Discount
  
  Our JJ revalve kits consist of specially selected set of JJ preamp valves ...In stock£452.00
  £384.20Buy Now
• Ampeg SVT VR Harma STR Ruby 6550A Full Upgrade Kit Ampeg Full Revalve KitsSpecial Offer 15% Discount
  
  Last Set
  
  Ampeg SVT Vintage Reissue Harma STR Ruby 6550A full upgrade kit is ...In stock£432.00
  £367.20Buy Now
• Ampeg SVT VR 6550 JJ Full Revalve KitAmpeg Full Revalve Kits
  
  Special Offer 15% Discount
  
  Our JJ revalve kits consist of a specially selected set of JJ ECC83S preamp ...In stock£432.00
  £367.20Buy Now
• Evil Robot EVR-C30 Harma ECC83 Retro Classic UTD RCA 6V6GTY Full Upgrade KitEvil Robot Full Revalve KitThe Evil Robot Retro United RCA GTY full revalve kit is designed to get the best sound and an instant upgrade over the ...In stock£367.00Buy Now

Specials

• 
  KT88-GOLD LION REISSUE
  Special Offer 10% Discount
  
  The Gold Lion re issue has gained a worldwide reputation for sound quality and is ...
  £90.00  £81.00
• 
  KT120-TUNG SOL RI
  The Tung Sol KT120 is a new valve which has a rated plate dissipation of 60 watts, which makes this the most powerful ...
  £85.00  £80.00
• 
  845B-PSVANE CLASSIC SERIES GRAPHITE PLATE
  The 845 B Psvane Classic Series is a remake of the vintage Amperex brass base 845.It has a high purity carbon graphite ...
  £110.00  £104.70
• 
  Fender Blues Junior Harma E84L STR BT Celestion V30 Kit
  Special Offer 10% Discount
  
  The Fender blues Junior fitted with a Celestion vintage 30 upgrade kit is designed to ...
  £216.17  £194.55
• Fender Blues Junior £126.00  £113.40
• ECC83/12AX7A-TUNG SO£280.00  £245.00
• ECC83/ECC83S-JJ TESL£160.00  £137.60