• Country
• United States of America (USA)

• Manufacturer / Brand
• Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)

• Year
• 1963

• Category
• Sound/Video Recorder and/or Player

• Radiomuseum.org ID
• 92805

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

• Number of Transistors
• 10

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Details
• Rec.Player+Audio.Amp+LS

• Power type and voltage
• Alternating Current supply (AC) / 120 Volt

• Loudspeaker
• 6 Loudspeakers

• Material
• Various materials

• from Radiomuseum.org
• Model: SP54 Ch= HS-1130 + HS-1181 + HS-1253 - Motorola Inc. ex Galvin Mfg.Co

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes

• The Motorola SP54 is a multi-channel all-transistor stereophonic phonograph that utilizes a push-pull audio output circuit.  Chassis HS-1181 and HS-1253 are for the preamplifier and chassis HS-1130 is for the power amplifier and power supply.

  The following models use the same schematic, but have different cabinet styling/color  and number of speakers:

  Model	Cabinet Color	No. of Speakers
  SP53N	Brown	5
  SP53W	White	5
  SP54	Walnut	6

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 25, 1965

• Literature/Schematics (1)
• Motorola Service Manual 68P60072A81 dated 8.63

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

• Other Models

• Here you find 4508 models, 2955 with images and 4002 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)