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PM Tube 12AX7-A Preamp Tube (Single)

Also known as an ECC83 Valve


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    Product Description

    The single most important signal preamp tube. The PM 12AX7A is built to the highest possible standard. A classic tube at the heart of nearly every guitar amplifier ever built.

    The PM range of guitar tubes is a unique blend of proven vintage technology plus an intensive research development program covering all aspects of performance and production. The result? Tubes of unparalleled sound quality and reliability. That’s why 
    PM are design consultants and tube suppliers to many of the biggest names in the music business for both guitar and high-end audio.

    Getting the best from PM Guitar Tubes

    PM Sets are perfectly matched - the tubes you’re replacing probably weren’t when originally fitted, so the BIAS on your amp will have been adjusted to a different value for each tube to ensure even performance. If the amp is self-biasing or user adjustable, no problem! If a fixed bias type it will need to be setup by an engineer, a simple job (for him!) Check your amp’s handbook before replacing. Incorrectly biased amps reduce tube life and performance, invalidate our guarantee and worst of all...sound bad!

    Did you know???
    That the 12AX7 & ECC83 are the same thing! One is a British code & one is an American code, but the valve itself is identical!
    PM Tubes
    Trade Doubler Group ID
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    Here at Andertons Music Co. we believe that we stock some of the best musical equipment in the world. That's why we want to make it as quick and easy as possible for you to get your order, safe and sound!

    We offer a wide range of delivery options to help fit around your busy lifestyle without compromise. This includes free, named-day delivery for most UK postcodes on orders over £99 which are in stock, Saturday & Sunday deliveries, and competitive delivery rates worldwide.

    Please note: Some UK postcodes including remote areas and Northern Ireland are subject to charges.

    You can find full details about the services we offer, including details on our international delivery charges, on our main delivery page. Click here to read more.

    Customer Reviews


    10 reviews





    Robin Hann5th Dec 2021

    Full, warm sound. Very nice

    Value 5Looks 5Durability 5Sound 5

    Robert Lock13th Nov 2021

    Good quality and reasonably priced, arrived day earlier than expected too!

    Value 5Looks 5Durability 5Sound 5

    Trusted Customer16th Jan 2020

    Great tubes amazing difference to my Vox highly recommend it!

    Value 4Looks 4Durability 5Sound 5

    Mr Thorleif Johansson7th Dec 2018

    Works as expected. No problem.

    Trusted Customer28th Dec 2014

    Liked the sound of these in the supplied Victory V30, so bought some more and put them in my Cornford Hellcat.

    Trusted Customer2nd Oct 2014

    jolly chuffin' good

    Trusted Customer2nd Jun 2014

    Again. Great product

    Trusted Customer24th Feb 2014

    Trusted Customer12th Jan 2014

    Works ok sounds fine.

    Trusted Customer13th Oct 2013


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    Read More About Online Finance

    Andertons Music Company's Registered Office: 58-59 Woodbridge Road, Guildford, GU1 4RF. Andertons Music Company acts as a credit broker and not a lender and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. Andertons Music Company is authorised and regulated by the Financial Conduct Authority. Credit provided subject to age and status.