T4 Code 124

• Country
• United States of America (USA)

• Manufacturer / Brand
• Philco, Philadelphia Stg. Batt. Co.; USA

• Year
• 1958

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 72194

• Picture
• Schematics

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

• Number of Transistors
• 4

• Semiconductors
• 2N252 2N253 R186 2N185

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

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / AA: 4 x 1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.75 inch = 7 cm

• Power out
• 0.025 W (unknown quality)

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: T4 Code 124 - Philco, Philadelphia Stg. Batt

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

• Notes
• The Philco Model T-4 is a Battery operated 4 transistor portable AM Receiver. BC Band Tuning Range: 535 to 1620KHz. Uses Qty(4) 1.5V AA cells. Cabinet is Aqua or Ivory and Black. The 2nd IF transistor R186 is reflexed as the 1st AF amplifier.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 19, 1959

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 4-59, Set 437, Folder 10)

• Literature/Schematics (2)
• - - Manufacturers Literature

• Author
• Model page created by Hinrich Grensemann † 15.5.16. See "Data change" for further contributors.

• Other Models

• Here you find 4017 models, 2213 with images and 3664 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA