- País
- Estados Unidos
- Fabricante / Marca
- National Company; Cambridge & Malden (MA)
- Año
- 1951–1958
- Categoría
- Receptor para radioaficionados (puede incluir bandas de radiodifusión publ.)
- Radiomuseum.org ID
- 49625
-
- alternative name: National Toy Co.
- Brand: Thrillbox
National SW-54
National SW 54
National SW 54 vista interno
National SW 54
By courtesy of William Kendrick, USA
National SW 54 Vista telaio
Sams Photofact Folders reference picture.
1952 National advertising in Brazil
Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.
- Numero de valvulas
- 5
- Principio principal
- Superheterodino en general; ZF/IF 455 kHz; 2 Etapas de AF
- Número de circuitos sintonía
- 6 Circuíto(s) AM
- Gama de ondas
- OM y más de dos OC
- Tensión de funcionamiento
- Red: Aparato AC/DC. / 117V = 105 -130 Volt
- Altavoz
- Altavoz dinámico (de imán permanente) / Ø 5 inch = 12.7 cm
- Potencia de salida
- 1.8 W (unknown quality)
- Material
- Metálico
- de Radiomuseum.org
- Modelo: SW-54 - National Company; Cambridge &
- Forma
- Sobremesa de cualquier forma, detalles no conocidos.
- Ancho, altura, profundidad
- 279 x 178 x 178 mm / 11 x 7 x 7 inch
- Anotaciones
-
National model SW-54 is an AC-DC operated multi-band superheterodyne receiver.
coverage 540 kHz - 30 MHz, AM, CW (BFO).National introduced the SW-54 in late 1950 as a 1951 model. It was advertised as "The Mighty Midget", covering broadcast and three shortwave bands. National's target was the low-end market, aimed at the shortwave listener and beginning ham radio operator for whom the 50 dollar price point was important. It did not have a real BFO stage but used regenerative IF as a substitute.
The set used mechanical "bandspread" with a 4 1/2 inch wide clear-plastic second knob with logging scale which was accessible on the right side of the cabinet. That larger knob was directly concentric with the tuning knob.
The SW-54 carried a warning label that the chassis was directly connected to one side of the power line. It was UL approved since the hot chassis was separated from the cabinet by insulators. The control shafts for the bandswitch and volume control were separately mounted on an insulator which protected the user in case a knob came off. The set also used an interlock connector that cut off the power if the back was removed to replace the tubes.
- Peso neto
- 5.8 kg / 12 lb 12.4 oz (12.775 lb)
- Precio durante el primer año
- 50.00 $
- Ext. procedencia de los datos
- Ernst Erb
- Procedencia de los datos
- Communications Receivers
- Referencia esquema
- Rider's Perpetual, Volume 22, covering 1951
- Mencionado en
- Shortwave Receivers - Past & Present (3rd ed.)
- Documentación / Esquemas (1)
- Photofact Folder, Howard W. SAMS (Date 8-51, Set 141, Folder 9)
- Documentación / Esquemas (2)
- Montgomery Ward Catalogs (Wards, Airline) (Fall/Winter 1951/52, page 702. Spring/Summer 1952, page 604. Fall/Winter 1954/55, page 665.)
- Documentación / Esquemas (3)
- National’s Entry-Level Shortwave Radio;The ‘Mighty Midget’ SW-54,The Spectrum Monitor, 3-2025,
- Otros modelos
-
Donde encontrará 446 modelos, 285 con imágenes y 189 con esquemas.
Ir al listado general de National Company; Cambridge & Malden (MA)
Colecciones
El modelo es parte de las colecciones de los siguientes miembros.