Model: FS47 (FS 47)
Antique radios, Old Time Radios
FS47 (FS 47)
Country:
United States of America (USA)
Manufacturer/Brand:
Lafayette Radio Corp; New York (NY)
Year: 1938
Type:
Radio or TunerBroadcast receiver (Radio).
Im Gegensatz zu Radioempfängern für kommerzielle und/oder militärische Zwecke und den frühen Empfängern für Morsezwecke nennen wir hier Radio bzw. Rundfunkempfänger. Aber: Gemäss internationaler Sprachregelung führt der Radiokatalog Band 1 alle Empfänger mit aktiven Bauteilen als RADIO. Wir unterscheiden hier ebenfalls nicht, ob mit Röhren bestückt, hybrid, mit Transistoren oder/und ICs.
Mod.-ID = 92828
previous
|
Result List
|
next
|
New search for Radios etc.
Schematics etc.: 0 (for
members)
Principle
Super-Heterodyne (Super in general)Superhet - normally without a preamplification stage (as far as known). Please use «To add informations to model» if you know more! Thanks.
Récepteur TSF superhétérodyne. Normalement sans préamplification de HF.
Superhet ohne Vorstufe.
Nicht immer war bei der Erfassung klar, ob der Empfänger eine Vorstufe aufweist oder nicht. Im Zweifelsfall kam das Gerät in diese Kategorie.
Wave bands
Broadcast, Short Wave(s) and Police.Broadcast (MW), Short Waves and Police can be one or several Short Wave Bands plus one or several Police-Bands.
Power type and voltage
AC/DC-set / 110 VoltAC-DC set (all-mains) - sometimes plus voltage range:
/ = 2 different voltages
- = voltage from-to
* = «Special»
Attention: Chassis mostly connected to deadly high tension!
Apparareil à tous-courants. Tensions mentionnées.
Wechsel- und Gleichstrom:
/ = 2 Spannungswahlen
- = von-bis
* = Fabrikwahl
Vorgeschalteten Trenntrafo verwenden! Chassis oft unter Starkstrom stehend!
Loudspeaker/pwr.out
Electro Magnetic Dynamic LS (moving-coil with field excitation coil)Electro magnetic dynamic loudspeaker (moving-coil principle by Rice-Kellog) with field excitation coil - mostly used as choke.
Haut parleur dynamique avec bobine d`excitation - plus souvent aussi utilisé pour le self.
Elektrodynamischer Lautsprecher mit Erregerspule für das Magnetfeld (Fremderregung), meist gleichzeitig als Siebglied dienend.
/ Ø 20.3 cm = 8 inch
www.radiomuseum.org
Model: FS47 (FS 47)
Material
Wooden caseWooden case. Most radios have a wooden cabinet until the WW2. Caisse en bois.
Die meisten Heim-Rundfunkempfänger führen von Beginn an bis etwa Ende 60er Jahre Holz als Gehäuse. Auch frühe Reiseempfänger zeigen Holz (speziell in den 20er Jahren) oder Holz mit Stoffüberzug etc.
Shape
Console with any shape - in general (details not known).
Valves / Tubes
9:
6D6
(more
for members)
Notes
Ballast 2x33A . This seems one of the objects in the "Tube Count Scandal" about 1935 to 1938, when some manufacturers started adding nonfunctional or unnecessary tubes to increase the number. Such a set was then offered for a fraction of what was one having the legitimate tube count and functionality. In our case here the radio features three ballasts and two rectifiers. Each rectifier tube can take 75 mA continuously DC, even as a doubler, while the Power tube draws only a total of ca 50 mA.
Mentioned in
Collector's Guide to AR6.Ed. Slusser tubeCollectors Guide to Antique Radios, 6th Edition, 2005 by John Slusser. See also other editions (incl. Bunis).
Literature/Schematics
1938 Lafayette Catalog Nº 69
This model was suggested by Vitor Oliveira.
Further information on
FS47 (FS 47) (Lafayette Radio Corp; New York (NY))
Obviously this model has unnecessarily three ballasts and two rectifiers. The filaments for the lineup including one rectifier are adding up to 80 volts, so one ballast would have done. But another three cheap tubes were added to increase the necessary number of eight to the better selling eleven tubes! This kind of business started from 1935/36 and became public in 1937, when this tube count scandal was revealed. In 1939 the trouble was over. Ref.: Mark V.Stein, Pre-War Consoles.
More...
