• Country
• United States of America (USA)

• Manufacturer / Brand
• Marantz (Sound United LLC); Vista, CA

• Year
• 1982

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 161977

• Number of Transistors
• Semiconductors present.

• Semiconductors
• HA11225 HA11223W LA1245 TD6104 TC9147 TD6301 TL489

• Main principle
• PLL, Phase-locked loop

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Stereo Synthesizer Tuner ST 521 - Marantz Sound United LLC;

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 416 x 55 x 300 mm / 16.4 x 2.2 x 11.8 inch

• Notes

• AM/FM Stereo Tuner, with memory for 8 AM and 8 FM stations.

  Memory backup battery 3V 200mAh.

• Net weight (2.2 lb = 1 kg)
• 2.950 kg / 6 lb 8 oz (6.498 lb)

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

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 569 models, 560 with images and 92 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marantz (Sound United LLC); Vista, CA