• Country
• United States of America (USA)

• Manufacturer / Brand
• MFJ Enterprises; Starkville (MS)

• Year
• 1992

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

• Radiomuseum.org ID
• 211977

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

• Number of Transistors
• 10

• Semiconductors

• Main principle
• Transceiver

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Powered by external power supply or a main unit. / 13,8 Volt

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

• Power out
• 4 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: CW Transceiver MFJ-9040 - MFJ Enterprises; Starkville MS

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 168 x 65 x 170 mm / 6.6 x 2.6 x 6.7 inch

• Notes
• Frequency coverage from 7000 to 7150 kHz on reception and on transmission; IF selectivity 8-pole crystal ladder filter: sensitivity better than 0.35 microV; RIT 1 kHz range; RF power output over 4 W at 50 ohm load and 13,8V; VSWR tolerance 3:1 VSWR

• Net weight (2.2 lb = 1 kg)
• 0.5 kg / 1 lb 1.6 oz (1.101 lb)

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

• Author
• Model page created by Emilio Focosi. See "Data change" for further contributors.

• Other Models

• Here you find 67 models, 65 with images and 41 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from MFJ Enterprises; Starkville (MS)