Model: EC3
Antique radios, Old Time Radios
EC3
Country:
United States of America (USA)
Manufacturer/Brand:
Echophone Radio, Inc. - see also (The) Radio Shop or Hallicr
Year: 1942 ??
Type:
Amateur-Receiver
Mod.-ID = 37963
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Schematics etc.: 4 (for
members)
Principle
Superhet with RF-stageSuperhet with a preamplification stage.
Please use «To add informations to model» if you know more! Thanks.
Récepteur TSF superhétérodyne avec préamplification de HF.
Superhet mit HF-Vorstufe.
Wave bands
Broadcast plus more than 2 Short Wave bands.Bei der KW kann es sich um einen Gesamtbereich plus gespreizte Bänder oder um mehrere Bänder ohne Gesamtbereich handeln.
Power type and voltage
AC/DC-set / 115-125 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
- This set has no built-in loudspeaker (separate or not necessary).This set has no built-in loudspeaker. It requires a separate loudspeaker or headset - or the set has no speaker output (not a radio).
Cet appareil n`a pas d`haut-parleur.
Das Gerät verfügt nicht über einen eingebauten Lautsprecher - entweder weil er nicht nötig ist (Gerät hat keine Tonwiedergabe) oder weil er separat zu stellen ist - bzw. das Gerät ist für Kopfhörerbetrieb.
www.radiomuseum.org
Model: EC3
Material
Metal caseMetal case.
Caisse en métal.
Gerät, dessen Gehäuse aus Metall gefertigt ist. Es kann sich um verschiedenartige Metalle und Oberflächenbearbeitungen handeln. Ist es hingegen nur ein Chassis, so erhält das Gerät eine andere Bezeichnung.
Shape
Tablemodel, low profile (big size).
Valves / Tubes
8:
6SG7
(more
for members)
Notes
Crystal filter (four position variable selectivity); calibrated bandspread; ANL; preselection on all bands. separate 6inch PM speaker. 1942 price.
Price in first year of sale
60
USD
Collectors prices
1 Collector price
(for members)
External source of data
Ernst Erb
Circuit diagram reference
Rider's Perpetual, Volume 13Ave, RD 2, Canandaigua, NY 14424-9564, USA.
For your information:
Other big collections of schematics for the USA are the books «Most-Often-Needed Radio Diagrams», compiled by M.N.BEITMAN (beginning: 1926-1938 = Vol. 1).
and folders from:
Howard W. Sams Company, 2647 Waterfront Parkway East Drive, Indianapolis, IN 46214-2041, Tel.: 1-800-GET-SAMS or 1-800-428-5331 or 7267.
Mentioned in
ARRL Handbook 1942
A 1941 advert showing the EC-1, 2 and 3.
Chassis view of the EC-3
Further information on
EC3 (Echophone Radio, Inc. - see also (The) Radio Shop or Hallicrafters Inc.)
The Echophones of the 1940 era were made by Hallicrafters who acquired the Echophone Co.
The EC-3 is an 8-tube receiver, 3 bands, covering 550 kc to 30 Mcs with electrical bandspread. There are four selectivity options, Broad and Narrow IF and Broad and Narrow Crystal. It is a transformerless design, i.e. HOT chassis.
One unique feature of the set is that it has a built-in keying monitor to allow one to monitor his sending during transmit.
Sensitivity and selectivity are fairly good with one tuned RF and 2 IF amp stages. Dial tracking and calibration is rather poor.
