• Country
• United States of America (USA)

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

• Year
• 1955/1956

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 91749

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

• Number of Transistors
• 3

• Semiconductors
• L5021 L5022 L5022

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Changer (Record changer)

• Power type and voltage
• Dry Batteries / 6 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 1 W (unknown quality)

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: TPA-2 [Red and Gray] - Philco, Philadelphia Stg. Batt

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes
• The TPA-2 stands for "Transistor Phonograph Amplifier". The "Philco Service Supervisor" of October 1955 features the TPA-1 and TPA-2. They are transistor amplifiers with push-pull class B output stage. Wooden with cloth covering.

• Literature/Schematics (1)
• Philco Factory-Supervised Service Home Radio 1956

• Author
• Model page created by Vitor Oliveira. See "Data change" for further contributors.

• Other Models

• Here you find 4041 models, 2217 with images and 3690 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA