• Country
• United States of America (USA)

• Manufacturer / Brand
• Sylvania (Hygrade, GTE, Nilco); Emporium (PA)

• Year
• 1960 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 85918

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

• Number of Transistors
• 4

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 9 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: 4P06 Ch= 690-1 - Sylvania Hygrade, GTE, Nilco;

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 21, 1961

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

• Other Models

• Here you find 1087 models, 455 with images and 956 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sylvania (Hygrade, GTE, Nilco); Emporium (PA)