Model: 900 Series Model 903

Antique radios, Old Time Radios

900 Series Model 903

Country: United States of America (USA) Manufacturer/Brand: Crescent Industries, Inc.; Chicago
Year: 1953 ? Type: Recorder and/or PlayerMusic/speech recorder and/or -player.
Tonspeichergerät im weiteren Sinn, also auch Kassettengerät, CD-Player, Tonbandmaschine, Video-Maschine etc. möglich. Mod.-ID = 133686 previous | Result List | next | New search for Radios etc. Schematics etc.: 12 (for members) Principle Audio-AmplificationAF (audio) amplification only, one, two or three stages etc.
Niederfrequenzverstärkung.
Meist als «Nachsatz» zu einem Empfänger verwendet, um das Tonsignal zu verstärken - z.B. für Lautsprecherwiedergabe statt Kopfhörer.
Details Tape RecorderTonbandgerät oder Apparat mit Tonbandgerät.
Power type and voltage Alternating Current supply (AC) / 110-120 VoltAC set plus voltage range.
/ = 2 different voltages
- = voltage from-to
* = «Special»
Apparareil à courant alternatif. Tensions mentionnées.
/ = 2 Spannungswahlen
- = von-bis
* = Fabrikwahl/«Spezial»
Trafo ist nicht immer mit Primär- undSekundärwicklungen versehen. Dadurch kann das Chassis ein gefährlichesPotential führen.
Loudspeaker/pwr.out Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)Permanent magnet type moving coil speaker (principle by Rice-Kellog, without field excitation coil).
Haut-parleur avec système dynamique à aimant permanent (sans bobine d`excitation).
Permanentdynamischer Lautsprecher, also (modernes) Tauchspulenprinzip mit Selbsterregung bzw. Permanentmagnet statt Magnetspule. Siehe «Radios von gestern» Seiten 329ff.
www.radiomuseum.org Model: 900 Series Model 903 Material Leather / canvas / plastic - over other material
Shape Portable, e.g. Portable Radio (with or without mains > 8 inch).
Valves / Tubes 4: 5879 (more for members)
Notes The Crescent 900 Series Tape Recorder is designed to record and play back two tracks of material on standard width (1/4") recording tape, which doubles the playing time of a standard 5" or 7" reel of tape with no loss of frequency response or quality. The Crescent Models 903 and 907 are fundamentally identical in construction, the major difference being that Model 903 has a tape speed of 3 3/4" per second while Model 907 operates at 7 1/2" per second.
Literature/Schematics Photofact Folders, SamsPhotofact Folders, Howard W. Sams. Normally referenced in schematics but when there is more ... (select the last field and enter the number in the free field). (Date 5-54, set 239, folder 3)

This model was suggested by Ernst Erb.

SAMS Photofact reference picture.
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900 Series Model 903 (Crescent Industries, Inc.; Chicago)