• Country
• United States of America (USA)

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

• Year
• 1969

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 118331

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

• Number of Tubes
• 1

• Valves / Tubes
• D3-11GJ

• Number of Transistors
• 38

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 10700 kHz

• Tuned circuits
• 18 AM circuit(s)

• Wave bands
• FM Broadcast Band Only

• Power type and voltage
• Alternating Current supply (AC) / 50 to 60 cycles, 120; 240 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Stereophonic Tuner twenty - Marantz Sound United LLC;

• Shape
• Book-shelf unit.

• Dimensions (WHD)
• 390 x 148 x 380 mm / 15.4 x 5.8 x 15 inch

• Notes

• Oscilloscope indicator for tuning, field strength, multipath, internal or external audio.
  Front-End without RF-preamplifier, symmetrical diode-mixer.
  31 bipolar transistors + 7 FET.

  Predecessor: Marantz Stereo FM Tuner 10B.
  Successor: Marantz twenty 20B.

• Price in first year of sale
• 2,970.00 DM

• Literature/Schematics (1)
• USA: Audio (Magazine), December 1969, p. 62

• Literature/Schematics (2)
• HiFi-Jahrbuch 5, Nr. 295, Verlag G. Braun, 1970

• Author
• Model page created by Ingo Gantenbrink. 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