• AC/HL/DD

  • Base: British-7-Pin, old (M7A) Top contact with a cap
  • Filament: Vf 4 Volts / If 1 Ampere / Indirect / Parallel, (AC/DC) /
  • Identical to: AC/HL/DD
  • Tube type: Double Diode-Triode Audio Frequency

  • Published by:

    dido
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