P808B

General Electric Co. (GE); Bridgeport CT, Syracuse NY

Data
Forum
Pictures
Collections

  • Year
  • 1959–1961
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 85366
    • Brand: Musaphonic

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 5
  • Semiconductors
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 9 Volt
  • Loudspeaker
  • Magnetic loudspeaker (reed) generic. / Ø 3.5 inch = 8.9 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: P808B - General Electric Co. GE;
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Notes

  • The General Electric P808B is a battery operated portable AM receiver. The AM band frequency tuning range is 540 to 1600kHz.  Has earphone jack that disconnects the speaker for private listening.

    The P808B is part of the following family of models:

    Model Other Models in Family Cabinet Color
    P755A None Gray
    P805A (Early) P805A (Late) White
    P806A (Early) P806A (Late) Blue
    P807A P807B, C, E, G, H, I, J, S, T Black
    P808A P808B, C, E, G, H, J, S, T White
    P809B P809C, E Green

    Has high impedance speaker with reed suspended between pole pieces, drives paper cone with a stylus, and is directly driven by a single ended collector, without an audio output transformer. One of several contemporary GE transistor radio models do employ this kind of speaker which was originally used in the 1920's because of it's high efficiency and high impedance.

  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model P808B is part of the collections of the following members.

 Forum

Forum contributions about this model: General Electric Co.: P808B

Threads: 1 | Posts: 1

Posseggo 4 diverse versioni di queste p808, sia del tipo convenzionale sia del tipo costruito a moduli: in tutte l'altoparlante non è di tipo magnetodinamico bensì incredibilmente a SPILLO, cioè con bobina fissa e magnete mobile com'erano gli altoparlanti sino ai primi anni '30! La resa sonora è comunque molto buona e non si nota alcuna differenza di fedeltà (ovviamente riferita alla banda passante delle onde medie) rispetto alle radio equipaggiate con normali altoparlanti.  Ho trovato altoparlanti di questo tipo anche su alcune General Electric tascabili più recenti, penso fine anni '60, che montavano già i transistor d'alta frequenza al silicio ed erano equipaggiate con altoparlantini a spillo da 5cm di diametro. La P808, nonostante impeghi solo 5 transistor,  presenta comunque una buona sensibilità e potenza sonora. La selettività invece non è eccezionale.

Enrico Bonisolo, 06.Dec.06

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