Monaural Headphones DHS-20 H-4/AR
Permoflux Corporation; Chicago (IL)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Permoflux Corporation; Chicago (IL)
- Year
- 1943 ?
- Category
- Loudspeaker, headphone or earphone
- Radiomuseum.org ID
- 310761
- Wave bands
- - without
- Power type and voltage
- No Power needed
- Loudspeaker
- - Is a Headphone or Earphone
- Material
- Leather / canvas / plastic - over other material
- from Radiomuseum.org
- Model: Monaural Headphones DHS-20 H-4/AR - Permoflux Corporation; Chicago
- Notes
-
US Navy Bureau of Aeronautics contract NOa(s) 2346. Specification No. H-15. Fitted with a short type 1/4" and very short cable for extension cable from radio or intercom. Used by US Navy and USAAF. The extension cord, Part N.A.F. No. F47613-4 (PX-GA-2), would have been supplied in the same box.
The actual dynamic earpieces, ANB-H-1A (PX-PDR3), are 130 ohms each approximately and wired in series via the canvas and leather headband, Navy No. 49510 headband (PX-PHA) also in the box. The ear-pads appear to be padded suede or chamois.
The H-3/ARR-3 are claimed to look identical but have extended frequency response. They are slightly like the DHS-17 headphones in appearance.
- Author
- Model page created by Michael Watterson. See "Data change" for further contributors.
- Other Models
-
Here you find 4 models, 4 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Permoflux Corporation; Chicago (IL)
Collections
The model Monaural Headphones DHS-20 is part of the collections of the following members.