• Country
• United States of America (USA)

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

• Year
• 1994 ?

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 302265

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

• Number of Transistors
• 3

• Semiconductors

• Wave bands
• - without

• Power type and voltage
• Powered by external power supply or a main unit. / 12 Volt

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

• Material
• Metal case

• from Radiomuseum.org
• Model: Morse Keyboard Keyer MFJ-452 - MFJ Enterprises; Starkville MS

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

• Dimensions (WHD)
• 3.5 x 2.5 x 3.5 inch / 89 x 64 x 89 mm

• Notes

• Standalone MFJ CW Keyer for any AT keyboard and iambic key; two line 16  character LCD display, eight 250 character nonvolatile message memory, a 150 character type-ahead buffer; variable speed from 5 to 100 WPM, adjustable weight from 5 to 95%, sidetone from 300 to 3000 Hz and serial number from 0 to 9999; buffer and memory full audible indicators. Keys solid state and tube rigs.

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

• Mentioned in
• -- Original prospect or advert

• 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)