• Country
• Japan

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

• Year
• 1978

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

• Radiomuseum.org ID
• 73456

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

• Number of Tubes
• 3

• Valves / Tubes
• 12BY7A 6146B 6146B

• Number of Transistors
• 138

• Semiconductors
• 2SA564 2SA639 2SA733 2SC372 2SC373 2SC535 2SC735 2SC945 2SC1000 2N4427 MPS-A13 2SK19 2SK34 3SK40 3SK59 JF1033 µPC14312 MC1416 MC14011 MC14042 MM74C90 MSM561 SN76514 SN74LS00 SN74LS90 SN74LS123 SN74LS192 TA7060 TA7061 TA7063P TA7205 TA7310 1N60 1S1007 1S1555 10D10 1S2236

• Main principle
• Superhet, double/triple conversion

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Line / Batteries (any type) / 100; 110; 117; 220; 234 / 13.8 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Power out
• 3 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: FT-901 /D /SD /DE /DM - Yaesu-Musen Co. Ltd.; Tokyo

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 342 x 154 x 324 mm / 13.5 x 6.1 x 12.8 inch

• Notes

• Transistors: 138, ICs: 61, Diodes: 151, Varicap Diodes: 15, Zener Diodes: 8, listed one per type and not all.
  Yaesu HF-Transceiver FT-901DM.
  Frequenzbereich: 160-10 m, 15 MHz WWV-Empfang, für die WARC-Bänder vorbereitet; Betriebsarten: SSB, CW, AM, FM, FSK; Curtis-keyer eingebaut; Sende-/Empfangs- und Transceive-Frequenzen speicherbar; Sprachprozessor; digitale und analoge Frequenzanzeige; P_out: 100 W (50 W bei AM, FM und FSK).

  FT-901D/SD/DE/DM Model Differences

  O = Built-in feature                 X = Available Option

  Feature	FT-901D	FT-901SD	FT-901DE	FT-901DM
  FM Unit	O	X	X	O
  RF Speech Processor	O	O	O	O
  AM Filter	X	X	X	X
  CW Filter	X	X	X	X
  Keyer Unit	X	X	O	O
  Memory Unit	X	X	X	O
  DC-DC Converter	X	X	X	O
  Cooling Fan	O	X	O	O
  Power Output (watts)	100	10	100	100

   

• Net weight (2.2 lb = 1 kg)
• 18 kg / 39 lb 10.4 oz (39.648 lb)

• Mentioned in
• RICOFUNK-Katalog 1980

• Literature/Schematics (1)
• Original Yaesu Instruction Manual

• Author
• Model page created by Iven Müller. 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