• XIIIesq@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      edit-2
      6 months ago

      Definitely not a tube amp. A tube amp usually has only one or two tubes. This number of tubes implies that they are being used as primitive transistors for logic functions, you can also see a number display made from nixie tubes at the top of the image.