• Country
• United States of America (USA)

• Manufacturer / Brand
• McElroy, T.R.; Boston MA

• Year
• 1941/1942

• Category
• Morse-Equipment & TTY, RTTY, TDD etc.

• Radiomuseum.org ID
• 161666

• Main principle
• none

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Speedex Transmitting Key 301 - McElroy, T.R.; Boston MA

• Net weight (2.2 lb = 1 kg)
• 1 lb (1 lb 0 oz) / 0.454 kg

• Price in first year of sale
• 1.00 $

• Mentioned in
• Allied Radio #76-057, $1.26

• Literature/Schematics (1)
• Allied Radio Catalog (Knight) (1942 p.136)

• Author
• Model page created by Edmund H. Ramm. See "Data change" for further contributors.

• Other Models

• Here you find 33 models, 33 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from McElroy, T.R.; Boston MA