- Pays
- Etats-Unis
- Fabricant / Marque
- National Company; Cambridge & Malden (MA)
- Année
- 1951–1958
- Catégorie
- Récepteur amateur (bandes amateurs, ev. avec bande AM)
- 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
Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.
- No. de tubes
- 5
- Principe général
- Super hétérodyne (en général); FI/IF 455 kHz; 2 Etage(s) BF
- Circuits accordés
- 6 Circuits MA (AM)
- Gammes d'ondes
- PO et plus que 2 x OC
- Tension / type courant
- Appareil tous courants (CA / CC) / 117V = 105 -130 Volt
- Haut-parleur
- HP dynamique à aimant permanent + bobine mobile / Ø 5 inch = 12.7 cm
- Puissance de sortie
- 1.8 W (qualité inconnue)
- Matière
- Boitier métallique
- De Radiomuseum.org
- Modèle: SW-54 - National Company; Cambridge &
- Forme
- Modèle de table générique
- Dimensions (LHP)
- 279 x 178 x 178 mm / 11 x 7 x 7 inch
- Remarques
-
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.
- Poids net
- 5.8 kg / 12 lb 12.4 oz (12.775 lb)
- Prix de mise sur le marché
- 50.00 $
- Source extérieure
- Ernst Erb
- Source
- Communications Receivers
- Source du schéma
- Rider's Perpetual, Volume 22, covering 1951
- Littérature
- Shortwave Receivers - Past & Present (3rd ed.)
- Schémathèque (1)
- Photofact Folder, Howard W. SAMS (Date 8-51, Set 141, Folder 9)
- Schémathèque (2)
- Montgomery Ward Catalogs (Wards, Airline) (Fall/Winter 1951/52, page 702. Spring/Summer 1952, page 604. Fall/Winter 1954/55, page 665.)
- Schémathèque (3)
- National’s Entry-Level Shortwave Radio;The ‘Mighty Midget’ SW-54,The Spectrum Monitor, 3-2025,
- D'autres Modèles
-
Vous pourrez trouver sous ce lien 446 modèles d'appareils, 285 avec des images et 189 avec des schémas.
Tous les appareils de National Company; Cambridge & Malden (MA)
Collections
Le modèle fait partie des collections des membres suivants.