All Transistor Portable Phonograph TPA-1 M32

Philco, Philadelphia Stg. Batt. Co.; USA

  • Year
  • 1955/1956
  • Category
  • Sound/Video Recorder and/or Player
  • ID
  • 81891

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

 Technical Specifications

  • Number of Transistors
  • 3
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Record Player (not changer)
  • Power type and voltage
  • Dry Batteries / D: 4 x 1.5 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
  • Model: All Transistor Portable Phonograph TPA-1 M32 - Philco, Philadelphia Stg. Batt
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 9 x 6.5 x 8 inch / 229 x 165 x 203 mm
  • Notes
  • The TPA-1 stands for "Transistor Phonograph Amplifier". The "Philco Service Supervisor" of October 1955 features the TPA-1 and TPA-2. TPA-1 and TPA-2 are transistor amplifiers with push-pull class B output stage. Wooden with cloth covering.

    This Philco TPA-1 All-Transistor 45rpm battery operated portable phonograph is NOT a record changer. It can only play one 45rpm record at a time. You have to manually place a  45 rpm record onto the phonograph platter and manually move the tone arm onto the 45rpm record to play it. And when 45rpm record is finished, you have to manually pick up the tone arm and place it back onto the phonographs's arm rest.

    The 1955 Philco's Models TPA-1 (M32) and TPA-2 (M32A) All-Transistor 45rpm portable battery operated phonographs were the World's First All-Transistor phonographs to be developed and produced.

  • Net weight (2.2 lb = 1 kg)
  • 10 lb (10 lb 0 oz) / 4.540 kg
  • Price in first year of sale
  • 59.95 US $
  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 16, 1956
  • Literature/Schematics (1)
  • Philco Factory-Supervised Service Home Radio 1956
  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

 Collections | Museums | Literature


The model All Transistor Portable Phonograph is part of the collections of the following members.


Forum contributions about this model: Philco, Philadelphia: All Transistor Portable Phonograph TPA-1 M32

Threads: 2 | Posts: 8

This 1955 Philco consumer product, was the World's First All-Transistor phonograph to be developed and produced.


Thanks Rick

Rick Hirsh, 30.Jan.09

Weitere Posts (3) zu diesem Thema.

I am wondering if anyone has the 1956 Philco Factory Supervised Service Home radio Yearbook, for I need the service information and schematic for the Philco TPA-1 phonograph, which is listed in this particular book ??

Also, does anyone have this Philco TPA-1 phonograph unit in their collection, for I would like to see an actual picture of it.

Thanks Rick (rickhirsh[A*T]


Rick Hirsh, 26.Jan.09

Weitere Posts (5) zu diesem Thema.