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500

500 ; Murdock, WM.J. Co.; (ID = 2263297) Speaker-P 500 ; Murdock, WM.J. Co.; (ID = 2263296) Speaker-P
500 ; Murdock, WM.J. Co.; (ID = 2263298) Speaker-P 500 ; Murdock, WM.J. Co.; (ID = 1300706) Speaker-P
500 ; Murdock, WM.J. Co.; (ID = 1300708) Speaker-P 500 ; Murdock, WM.J. Co.; (ID = 636311) Speaker-P
500 ; Murdock, WM.J. Co.; (ID = 636313) Speaker-P 500 ; Murdock, WM.J. Co.; (ID = 636312) Speaker-P
500 ; Murdock, WM.J. Co.; (ID = 636315) Speaker-P 500 ; Murdock, WM.J. Co.; (ID = 636316) Speaker-P
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500 ; Murdock, WM.J. Co.; (ID = 2263297) Speaker-P
Murdock, WM.J. Co.;: 500 [Speaker-P] ID = 2263297 1400x1050
Select picture or schematic to display from thumbnails on the right and click for download.
For model 500, Murdock, WM.J. Co.; Chelsea:
US_Murdock_HP type 500_vue d'angle_coll. privée (réf: 1518).
 
Country:  United States of America (USA)
Manufacturer / Brand:  Murdock, WM.J. Co.; Chelsea
alternative name
 
William J. Murdock Co.
Year: 1921–1924 Category: Loudspeaker, headphone or earphone
Wave bands - without
Details
Power type and voltage No Power needed
Loudspeaker Horn / Ø 18 cm = 7.1 inch
Power out
from Radiomuseum.org Model: 500 - Murdock, WM.J. Co.; Chelsea
Material Various materials
Dimensions (WHD) 390 x 230 x 180 mm / 15.4 x 9.1 x 7.1 inch
Notes

Megaphone style (straight horn).

Ads for this speaker began in March 1923. Ads throughout 1923 from Murdock and Barawick both show the aluminum neck with 'MURDOCK RADIO' marked on the side of it. Beginning January 1924 ads show the aluminum neck with no marking. Murdock appears to have stopped advertising these in magazines in early 1924 although distributors continued advertising them, probably until their stock was depleted.

Net weight (2.2 lb = 1 kg) 0.650 kg / 1 lb 6.9 oz (1.432 lb)
Source of data Radio News
Mentioned in Horn Speaker Encyclop. by Floyd A.Paul, pp. 47, 72

Model page created by Meyer Rochwerger. See "Data change" for further contributors.



All listed radios etc. from Murdock, WM.J. Co.; Chelsea
Here you find 88 models, 70 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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