12BH7 ECC99 based Kits

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  • ValveTubeguiraamps.com valve kit logos image

    Blackstar HT5 Valve kit

    £38.50
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  • Superior Blackstar HT1 Valve Kit image

    Superior Blackstar HT1 Valve Kit

    £42.99
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  • ValveTubeguiraamps.com valve kit logos image

    JJ Blackstar HT1 Series Valve Kit

    £22.99
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  • Supro Comet 1610 Valve kit

    Supro Comet 1610 Valve Kit

    £69.99
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  • Supro Thunderbolt Valve kit

    Supro Thunderbolt Valve Kit

    £89.99
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  • JJ 5881 Matched pair and 4 ECC83S

    4x ECC83S 2 x 5881 JJ Valve Kit

    £83.99
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  • Marshall JCM900 valve kit image

    Marshall JCM900 Tung Sol valve kit

    £141.99
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  • Supro Coronado 1690 Valve Kit

    Supro Coronado 1690T Valve Kit

    £126.99
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  • Supro Titan 1624 Valve Kit

    Supro Titan 1624 Valve Kit

    £132.99
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  • Supro Jupiter Valve Kit

    Supro Jupiter Valve Kit

    £120.99
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  • Tung Sol 5881 matched pair and 4 12AX7

    Tung Sol 4x 12AX7 2x 5881 Valve Kit

    £103.99
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  • ValveTubeguiraamps.com valve kit logos image

    Marshall DSL5 Valve Kit

    £27.99
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Recent Customer Reviews


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"I’d spent some time upgrading my Blues Junior mk2 with better-spec components; larger pine cab, Cannabis rex, caps & resistors. What difference could alternative preamp tubes make? Well…I’ve already thanked Stewart for hooking me up with these beauties. 7025’s in the V1 & 2 sockets really have cut background noise to pretty-much nowt & any ‘loss of gain’ (I use pedals for this anyhow) is made up for by being able to play at increased vol & greater clean headroom. I lik’em & you might too!." - MH bought EH 7025's and reviewed on 18th July 2021

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"Awesome" US Cusomer S.O. bought Marshall DSL Stable Bias Board kit and reviewed on 18th July 2021

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