• 53

  • First year: 1933
  • Base: 7-Pin-Base U7B = medium, old, USA (Codex=M)
  • Filament: Vf 2.5 Volts / If: 2 Ampere / -: Indirect / -: Parallel, (AC/DC) /
  • Identical to: = CV2535
  • Tube type: Double Triode Power/Output

  • Published by:

    dido
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