• 2A7

  • First year: 1933
  • Base: 7-Pin-Base U7A = small, old, USA (Codex=Mh) Top contact with a cap
  • Filament: Vf 2.5 Volts / If 0.8 Ampere / Indirect / Parallel, (AC/DC) /
  • Identical to: 2A7 = PH2A7 = Ut-2A7 = ER2A7 = CV787
  • Tube type: Pentagrid-Converter (Heptode) Pentagrid (old) Controlling (mu)
  • Published by:

    dido