• Year
  • 1961 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 136462

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

 Technical Specifications

  • Number of Transistors
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Dry Batteries / 2 x 1.5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2 inch = 5.1 cm
  • Material
  • Plastics (no bakelite or catalin)
  • from Radiomuseum.org
  • Model: T-77IV Code 124 [ivory] - Philco, Philadelphia Stg. Batt
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 65 x 116 x 34 mm / 2.6 x 4.6 x 1.3 inch
  • Notes
  • Color: ivory. Sams photofact, set 574, folder 11, date 4-62 features the Philco models T-77AQ, T-77BK and T-77IV as the same schematic. Large tuning knob , small volume knob, earphone jack.
  • Net weight (2.2 lb = 1 kg)
  • 0.250 kg / 0 lb 8.8 oz (0.551 lb)
  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 22, 1962
  • Mentioned in
  • Bunis, Transistor Radios, 2nd ed., 1996, p. 204
  • Literature/Schematics (2)
  • Philco Service Manual, 1961
  • Author
  • Model page created by Peter Hoddow. See "Data change" for further contributors.

 Collections | Museums | Literature

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The model T-77IV is part of the collections of the following members.

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