F2a Siemens F2a11

Siemens F2a & F2a11, indirectly heated long life tetrodes, both versions are electrically identical, the difference is just in socket. They are constructed exclusively for professional audio amplifiers, SE or PP, sound really nice triode strapped in push-pull amplifiers

Closely matched pair, within 1%, almost identical tubes!!!

 

Click to see all Output pentodes and tetrodes in stock

 

9 thoughts on “F2a Siemens F2a11

  1. Marco

    Buongiorno,
    vorrei sapere se ha disponibili due tubi F2A11 da vendermi
    grazie
    Marco

    Good morning,
    I would like to know if you have available to sell me two tubes F2A11
    thanks
    Marco

    Reply

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