• Country
• United States of America (USA)

• Manufacturer / Brand
• Philips USA

• Year
• 1978

• Category
• Audio Amplifier or -mixer

• Radiomuseum.org ID
• 126326

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110; 220 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 480 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: High Fidelity Laboratories Power Amplifier 578 22AH578 /00 - Philips USA

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 457 x 200 x 381 mm / 18 x 7.9 x 15 inch

• Notes
• Ausgangsleistung: 2x 240W Sinus an 4Ω.
  Teilweise Sensortasten zur Funktionswahl.

• Net weight (2.2 lb = 1 kg)
• 26.8 kg / 59 lb 0.5 oz (59.031 lb)

• Source of data
• - - Data from my own collection

• Mentioned in
• HiFi Jahrbuch 9, G. Braun Verlag Karlsruhe 1978, S. 5-107

• Literature/Schematics (1)
• -- Original-techn. papers.

• Author
• Model page created by Hartmut Daniels † 22.11.16. See "Data change" for further contributors.

• Other Models

• Here you find 43 models, 41 with images and 14 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips USA