T-17

MILITARY U.S. (different makers for same model)

Data
Forum
Pictures
Collections

  • Year
  • 1937–1955 ??
  • Category
  • Microphone or Pick-up element
  • Radiomuseum.org ID
  • 74875

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

 Technical Specifications

  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: T-17 - MILITARY U.S. different makers
  • Shape
  • Miscellaneous shapes - described under notes.
  • Dimensions (WHD)
  • 65 x 157 x 59 mm / 2.6 x 6.2 x 2.3 inch
  • Notes
  • Handheld carbon microphone with PTT (SW-109). Cord is terminated with plug 68 (PL-68).
  • Net weight (2.2 lb = 1 kg)
  • 0.7 kg / 1 lb 8.7 oz (1.542 lb)
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model is part of the collections of the following members.

 Forum

Forum contributions about this model: MILITARY U.S.: T-17

Threads: 1 | Posts: 1

The T-17 is an anti-noise carbon-button hand microphone used with standard radio and telephone equipment of the US Army Signal Corps.  As a carbon microphone, it needs a source of low-voltage DC in series, powered by the circuit to which it is connected.  Like most US military electronics, especially in the 1940s, there were multiple manufacturers for the same or similar devices.  Frequency response is 400 - 2600 Hz.  Impedance is designed to match a 35 to 90 ohm circuit.  Output is 34 to 50 db depending upon frequency. The push-button and the microphone face are typically made of Bakelite.  Some of the T-17 had a hook on top.  Other variations did not.  I have uploaded a copy of the relevant page of specifications from the Signal Corps.

See also the RadioMuseum separately listed Microphone T-17 6490-CHI-42 made by Shure. 

Rich Post, 25.Nov.21

Weitere Posts (1) zu diesem Thema.