• Country
• Japan

• Manufacturer / Brand
• Yaesu-Musen Co. Ltd.; Tokyo

• Year
• 1967

• Category
• Amateur TRX: Transmitter/Receiver (and Transceiver)

• Radiomuseum.org ID
• 119532

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

• Number of Tubes
• 19

• Valves / Tubes
• 6BZ6 6BA6 6AH6 6GK6 6KD6 6KD6 VR105MT 6CB6 6CB6 6BE6 6BA6 6BA6 12AU7 7360 12AX7 12AU7 6BM8 6BA6 6U8 12AU7

• Number of Transistors
• 9

• Semiconductors

• Main principle
• Superhet, double/triple conversion; ZF/IF 3180 kHz

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 117; 220 Volt

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

• Power out
• 1 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Transceiver FT DX-400 - Yaesu-Musen Co. Ltd.; Tokyo

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 400 x 159 x 349 mm / 15.7 x 6.3 x 13.7 inch

• Notes

• Yaesu HF-Transceiver FTDX-400.
  Coverage 80 to 10 m HAM-bands, 3 extra bands can be added; Modes: SSB, CW, AM; P_in: 560 W PEP, 500 W for CW, 125 W for AM.

  The Yaesu SP-400 speaker matches the FT DX-400.

• Net weight (2.2 lb = 1 kg)
• 22.7 kg / 50 lb 0 oz (50 lb)

• Price in first year of sale
• 599.95 USD

• Source of data
• -- Original-techn. papers.

• Mentioned in
• QST (January 1969 page 119)

• Literature/Schematics (1)
• Tube Type Transmitters (2nd edition page 297)

• Author
• Model page created by Ottmar Rollmann. See "Data change" for further contributors.

• Other Models

• Here you find 305 models, 289 with images and 139 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Yaesu-Musen Co. Ltd.; Tokyo