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Soundmirror BK-401

Soundmirror BK-401 ; Brush Development Co (ID = 135651) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994754) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994755) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994756) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994757) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994758) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994759) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994760) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994761) R-Player
 
Soundmirror BK-401 ; Brush Development Co (ID = 994762) R-Player
Soundmirror BK-401 ; Brush Development Co (ID = 1642451) R-Player Soundmirror BK-401 ; Brush Development Co (ID = 140895) R-Player
Soundmirror BK-401 ; Brush Development Co (ID = 140897) R-Player Soundmirror BK-401 ; Brush Development Co (ID = 994753) R-Player
Soundmirror BK-401 ; Brush Development Co (ID = 140896) R-Player Soundmirror BK-401 ; Brush Development Co (ID = 140898) R-Player
Soundmirror BK-401 ; Brush Development Co (ID = 140899) R-Player Soundmirror BK-401 ; Brush Development Co (ID = 140900) R-Player
Soundmirror BK-401 ; Brush Development Co (ID = 136135) R-Player Soundmirror BK-401 ; Brush Development Co (ID = 541713) R-Player
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Soundmirror BK-401 ; Brush Development Co (ID = 1642451) R-Player
Brush Development Co: Soundmirror BK-401 [R-Player] ID = 1642451 933x1128
Select picture or schematic to display from thumbnails on the right and click for download.
For model Soundmirror BK-401, Brush Development Co.; Cleveland, Ohio:
Thanks for Mr.Nagy Vilmos, Hungary, Orsós Magnó Múzeum, Terény and Első Zalai Rádiómúzeum Alapítvány, First Zala County Radio Museum Foundation.
 
Country:  United States of America (USA)
Manufacturer / Brand:  Brush Development Co.; Cleveland, Ohio
alternative name
 
Brush Electronics
Year: 1946 Type: Recorder and/or Player
Valves / Tubes 10: 6SJ7 6SN7 6SJ7 6SN7 6E5 6SN7 6SN7 6SN7 6SN7 5Y3
Principle Audio-Amplification
Wave bands - without
Details Tape Recorder
Power type and voltage Alternating Current supply (AC) / 110 Volt
Loudspeaker Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
Power out
from Radiomuseum.org Model: Soundmirror BK-401 - Brush Development Co.;
Material Wooden case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 450 x 290 x 350 mm / 17.7 x 11.4 x 13.8 inch
Notes The Soundmirror BK-401 is the second magnetic tape recorder-reproducer of the Brush Development Company. The operator instructions are mainly done by typewriting. The recording tape is made of paper. 3 motor drive !

Features: 1/4" mono full-track reel-to-reel recorder/reproducer. 3", 5" and 7" EIA hub reels for 2-hour recording. 7 1/2 ips only. Reels made by 3M.

Designed primarily for home-recording purposes. recordings may be made either from a crystal microphone, supplied with the unit, or from a phonograph pickup or the detector stage of a radio. The recording medium is coated-paper tape, marketed under the name of Magnetic Ribbon. Difficulties with slit tilt are avoided in the Soundmirror by using the same head for both recording and playback; a separate head, spaced about 1 inch from the recording head, is employed for erasing. During recording or playback the medium is held against the recording and erasing heads by felt pressure pads, which are automatically withdrawn when the "stop" switch is depressed. Any previous recording on the medium is automatically erased at the time a recording is made. Level is monitored during the recording period by means of a magic eye tube.
Net weight (2.2 lb = 1 kg) 18.8 kg / 41 lb 6.6 oz (41.41 lb)
Mentioned in Funkschau (FS) (Heft 6 März 1983 Walter Bruch)
Literature/Schematics (4) Photofact Folder, Howard W. SAMS (Set 42, Date 7/48, Folder 4812-25)

Model page created by Ernst Erb. See "Data change" for further contributors.



All listed radios etc. from Brush Development Co.; Cleveland, Ohio
Here you find 39 models, 35 with images and 21 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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