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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
• 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
• Marshall VBA 400 Classic 6550A Retro 6550A Full Upgrade KitMarshall Amp Full Revalve KitsSpecial Offer 15% Discount
  
  The Marshall VBA 400 Classic Retro full revalve kit is specially selected for ...In stock£617.00
  £524.45Buy 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 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£463.00Buy 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 STR 6550A Retro Full Upgrade KitAmpeg Full Revalve KitsSpecial Offer 20% Discount
  
  Last Set In Stock>br>
  Ampeg SVT 2 Pro Harma STR full upgrade kit is designed to ...In stock£540.00
  £432.00Buy 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
• 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
• 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£440.00
  £396.00Buy 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£440.00
  £396.00Buy Now
• Orange Thunderverb 200 Classic 6550A Retro Full Upgrade KitOrange Full Revalve KitsOrange Thunderverb 200 Classic Retro full upgrade kit uses a combination of Harma ECC83 Retro & Harma Retro 6550A to ...In stock£395.00Buy 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£438.00
  £394.20Buy Now
• Mesa Bass 400+ Harma STR 5881 Full Upgrade Kit Mesa Boogie Full Revalve KitsSpecial Offer 10% Discount
  
  This kit is for the Mesa 400 Plus bass head which was originally fitted with Mesa STR ...In stock£434.00
  £390.60Buy Now
• Marshall Signature Series AFD 100 head Classic 6550A Retro full upgrade kitMarshall Amp Full Revalve KitsThe Marshall AFD 100 Classic Retro full revalve kit is designed to give your Marshall a warm sustaining sound with ...In stock£388.00Buy 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
• Mesa Triple Rectifier Harma STR Philips 6L6WGB Full Upgrade KitMesa Boogie Full Revalve KitsSpecial Offer 15% Discount
  
  The Harma ECC83 STR Philips 6L6WGB full upgrade kit is designed to give you the ...In stock£437.00
  £371.45Buy 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
• Ampeg SVT 2 Pro 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£428.00
  £363.80Buy Now
• Ampeg SVT Heritage 50th Ann 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£424.00
  £360.40Buy Now
• Ampeg SVT CL Harma 7025 6550 JJ Full Upgrade Kit Ampeg Full Revalve Kits
  
  Special Offer 10% Discount
  
  The Harma 7025 STR JJ upgrade kit is designed to give your SVT Classic head a ...In stock£400.00
  £360.00Buy Now

Specials

• 
  EL34/EL34B STR-TAD SPECIAL OFFER
  Special Offer 15% Discount
  
  The TAD EL34B STR has been around for many years now and this valve has a number of ...
  £22.00  £18.70
• 
  EL84-SOVTEK
  Special Offer 20% Discount Limited Stock
  
  The Sovtek EL84 has been the industry standard go to EL84 for over 25 ...
  £24.00  £19.20
• 
  GZ34/5AR4-SOVTEK
  Special Offer 15% Discount
  
  The Sovtek GZ34 5AR4 a very well made modern full wave rectifier. The valve uses ...
  £32.00  £27.20
• 
  211-PSVANE CLASSIC SERIES
  Special Offer 15% Discount<>br>
  Psvane 211 Classic Series is a directly heated audio power triode for High end Audio ...
  £115.00  £97.75
• EF86-HARMA RETRO£26.00  £23.40
• Bugera 6262 Infinium£254.00  £228.60
• Way Huge WM22 Smalls£132.50  £119.25