Squeeze Keyer ETM-3C

Samson, Margot; Osburg

  • Year
  • 1974–1977
  • Category
  • Morse-Equipment & TTY, RTTY, TDD etc.
  • Radiomuseum.org ID
  • 96013
    • Brand: ETM

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

 Technical Specifications

  • Number of Transistors
  • 4
  • Wave bands
  • - without
  • Power type and voltage
  • Dry Batteries / 4 x 1,5 (AA) Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Squeeze Keyer ETM-3C - Samson, Margot; Osburg
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Vollautomatische elektronische Zweihebel-Morsetaste (Squeeze-Prinzip) mit Tastrelais-Ausgang in Reed-Technik und eingebautem Mithörton.

    Ausführung in CMOS-Schaltung (ETM-3C).

    Bestückung mit 6 C-MOS-Bausteinen:

    3 x 74HCT00
    2 x 74HCT73
    1 x 74HCT02

    Die Version mit eingebautem Netzteil nennt sich ETM-3b.

  • Net weight (2.2 lb = 1 kg)
  • 1.5 kg / 3 lb 4.9 oz (3.304 lb)
  • Mentioned in
  • Gregor Ulsamer, Faszination Morsetasten, Emden 2001
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

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