Our Valve Brands
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JJ EL84 Singles Matched Pairs & Quads
From £19.50 Select options This product has multiple variants. The options may be chosen on the product pageJJ EL84 Singles Matched Pairs & Quads. Best value for EL84 replacements, including AC4, AC15, Blues Jr, AC30, Peavey Classic 30, Dr Z and more. All tubes premium  tested and matched in-house to the highest standards.
Made by JJ Electronic in Slovakia. Tested in-house.
180 day warranty.
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JJ EZ81 (6CA4) Rectifier
£23.99 Add to basketThe JJ EZ81 (6CA4) Rectifier. Fully tested in-house and backed by our class-leading 180 day warranty.
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JJ GZ34S Rectifier (5AR4) Premium Tested
£27.88 Add to basketThe JJ GZ34S Rectifier. We test every rectifier we sell on our Avo testers. An excellent valve for harnessing rectifier sag.
Made by JJ Electronic in Slovakia.
Fully tested in-house and backed by our class-leading 180 day warranty.
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JJ Hi-Watt T20 and T20HD Valve kits
£79.00 Add to basketOur JJ 1x ECC82 2x ECC83S 2x EL84 Valve Kit contains four valves total. Ideal for the Hi-Watt T20 and similar amps. Output valves and phase splitter matched by hand in-house.
Made in Slovakia. Tested in-house.
180 day warranty.
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JJ KT66 Beam Tetrode Output Valve
£38.00 Read moreThe JJ KT66 beam tetrode valve. Fully tested in-house for maximum quality.
Made by JJ Electronic in Slovakia.
180 day warranty.
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JJ KT66 Matched Sets
From £105.00 Select options This product has multiple variants. The options may be chosen on the product pageThis is a pair of JJ KT66s expertly matched in-house. Includes a test certificate showing the matching results. Our istening tests ensure low microphonics and noise
Made in Slovakia. Tested in-house.
180 day warranty.
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JJ KT88 Matched Pairs & Quads
From £120.00 Select options This product has multiple variants. The options may be chosen on the product pageFully tested JJ Electronic KT88 valves. Available here as matched pairs and matched quads. This is one powerful bottle, packing 42 watts, strong bass and dazzling highs. Also compatible with 6550 amplifiers.
Made by JJ Electronic in Slovakia. Tested in-house.
180 day warranty.
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JJ Premium Tested Marshall SL5 Valve Kit
£73.00 Add to basketFull replacement valve kit for the Marshall SL5 amp.
Our JJ EL34 kits use the much improved JJ EL34II for its vastly richer mid tones. Your valves are prmium tested on our custom valve testers
All valves tested in-house.
180 day warranty.
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Marshall DSL15 Valve Kit with EH valves
£198.00 Add to basketThis fully tested kit contains four EH 12AX7s and two 6VGTs. We use state-of-the-art valve testers and over 40 years of industry expertise to test and match your valves to ensure optimum performance and superb tone. We supply a test certificate showing the matching and test results.
Made in the Saratov factory in Russia. Tested in-house.
180 day warranty.