Poly-Planar P-20

ERA Acoustics Corp.; Moonachie (NJ)

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Country
United States of America (USA)

Manufacturer / Brand
ERA Acoustics Corp.; Moonachie (NJ)

Year
1970 ??

Category
Loudspeaker, headphone or earphone

Radiomuseum.org ID
271784

Picture
Schematics

Poly-Planar P-20; ERA Acoustics Corp.; (ID = 1861451) Speaker-P — ERA Acoustics Corp.; Poly-Planar P-20 (2)
French advertisement

Poly-Planar P-20; ERA Acoustics Corp.; (ID = 1861449) Speaker-P — ERA Acoustics Corp.; Poly-Planar P-20 (2)
Advertisement

Poly-Planar P-20; ERA Acoustics Corp.; (ID = 1861453) Speaker-P — ERA Acoustics Corp.; Poly-Planar P-20 (2)
French advertisement

Poly-Planar P-20; ERA Acoustics Corp.; (ID = 2746283) Speaker-P — ERA Acoustics Corp.; Poly-Planar P-20 (2)
From guest Ben Turgeon

Poly-Planar P-20; ERA Acoustics Corp.; (ID = 2746284) Speaker-P — ERA Acoustics Corp.; Poly-Planar P-20 (2)
From guest Ben Turgeon

Poly-Planar P-20; ERA Acoustics Corp.; (ID = 2746285) Speaker-P — ERA Acoustics Corp.; Poly-Planar P-20 (2)
From guest Ben Turgeon

Technical Specifications

Wave bands
- without

Power type and voltage
No Power needed

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

Power out
20 W (unknown quality)

Material
Special material, described in the notes.

from Radiomuseum.org
Model: Poly-Planar P-20 - ERA Acoustics Corp.; Moonachie

Shape
Chassis only or for «building in»

Dimensions (WHD)
300 x 355 x 35 mm / 11.8 x 14 x 1.4 inch

Notes
"poly-planar" loudspeaker. Impedance 8 ohms. Frequency range 40 Hz - 20 kHz.

The membrane is made of styrofoam, mounted in a rigid plastic frame.

Other Models
Here you find 2 models, 2 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from ERA Acoustics Corp.; Moonachie (NJ)

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