S-72

Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

Datos

Foro

Imágenes

Colecciones

País
Estados Unidos

Fabricante / Marca
Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

Año
1949–1953

Categoría
Receptor para radioaficionados (puede incluir bandas de radiodifusión publ.)

Radiomuseum.org ID
43904

Imágenes
Esquemas

S-72; Hallicrafters, The; (ID = 265880) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 265881) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 265883) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 265884) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 265885) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 265886) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 265887) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 265888) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 1549578) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 1549579) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 1549580) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 1549581) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 1549582) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 1549583) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 1549584) Amateur-R — Hallicrafters, The; S-72 (3)

S-72; Hallicrafters, The; (ID = 928624) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 928627) Amateur-R — Hallicrafters, The; S-72 (1)
Deckel geöffnet

S-72; Hallicrafters, The; (ID = 59516) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 210675) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 928625) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 928626) Amateur-R — Hallicrafters, The; S-72 (1)
Koffergeraet mit aufgekl. Deckel

S-72; Hallicrafters, The; (ID = 928629) Amateur-R — Hallicrafters, The; S-72 (1)
Typenschild

S-72; Hallicrafters, The; (ID = 1326284) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 1331275) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 1549586) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 1622245) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 1994487) Amateur-R — Hallicrafters, The; S-72 (1)
Just cleaned. S72R

S-72; Hallicrafters, The; (ID = 1994491) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 1994499) Amateur-R — Hallicrafters, The; S-72 (1)
Before doing anything. Absolutely original.

S-72; Hallicrafters, The; (ID = 1994500) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 1994501) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 1994505) Amateur-R — Hallicrafters, The; S-72 (2)
From contemporary advert.

S-72; Hallicrafters, The; (ID = 1994512) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 2058633) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 2058635) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 2058638) Amateur-R — Hallicrafters, The; S-72 (2)

S-72; Hallicrafters, The; (ID = 2092916) Amateur-R — Hallicrafters, The; S-72 (2)
Hallicrafters Print Ad

S-72; Hallicrafters, The; (ID = 2656519) Amateur-R — Hallicrafters, The; S-72 (1)
Hallicrafters S-72 portable receiver

S-72; Hallicrafters, The; (ID = 2656520) Amateur-R — Hallicrafters, The; S-72 (1)
Hallicrafters S-72 portable receiver-open

S-72; Hallicrafters, The; (ID = 2656521) Amateur-R — Hallicrafters, The; S-72 (1)

S-72; Hallicrafters, The; (ID = 2656522) Amateur-R — Hallicrafters, The; S-72 (2)

Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.

Especificaciones técnicas

Numero de valvulas
8

Válvulas
1T4 1U4 1R5 1U4 1U4 1U5 1U5 3V4

Principio principal
Superheterodino con paso previo de RF; ZF/IF 455 kHz

Número de circuitos sintonía
9 Circuíto(s) AM

Gama de ondas
OM y más de dos OC

Tensión de funcionamiento
Red / Baterías o pilas / 105-125 Volt

Altavoz
Altavoz dinámico (de imán permanente) / Ø 5 inch = 12.7 cm

Material
Cuero/Tela/ Plástico sobre otros materiales

de Radiomuseum.org
Modelo: S-72 - Hallicrafters, The; Chicago,

Forma
Portátil > 20 cm (sin la necesidad de una red)

Ancho, altura, profundidad
14 x 12.2 x 7.25 inch / 356 x 310 x 184 mm

Anotaciones
AC/DC battery portable. Luggage-type cabinet in brown leatherette. Weight 16lbs., less battery pack. The price in the Sears Catalog is $ 109.95. See also the Hallicrafters model S-72L.

Sears order number : 57E 07457

Peso neto
7.2 kg / 15 lb 13.7 oz (15.859 lb)

Precio durante el primer año
109.95 $

Ext. procedencia de los datos
Ernst Erb

Procedencia de los datos
The Radio Collector's Directory and Price Guide 1921 - 1965

Referencia esquema
Rider's Perpetual, Volume 20 covering 1950

Mencionado en
Communications Receivers

Documentación / Esquemas (2)
Montgomery Ward Catalogs (Wards, Airline) (Spring/Summer 1952, page 605.)

Documentación / Esquemas (3)
Sears, Roebuck Catalogs (Silvertone) (Spring & Summer 1951, page 648. Fall & Winter 1952/53, page 857.)

Documentación / Esquemas (4)
Sears, Roebuck Catalogs (Silvertone) (Fall/Winter 1950, page 744.)

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Ir al listado general de Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

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El modelo es parte de las colecciones de los siguientes miembros.

Forum

Contribuciones en el Foro acerca de este modelo: Hallicrafters, The;: S-72

Hilos: 1 | Mensajes: 2

The original version had an ANL on/off switch above the earphone socket (Automatic Noise Limiter). The wood under the brass grill still has the hole on later S72R models. The S72R appears to have been sold till 1959.

The S72R seems to have several revisions and early versions seem the same as S72. Later versions have a second electrolytic multicap mounted in the hole beside the main one. This fouls any earphone headset on rear panel, unless it's narrow or soft head strap.

A variety of large 7.5V/90V (and 7.5V/9V) battery packs are compatible. It has two paralleled series filament chains, so a filament failure when on AC mains can cause a second failure.

The mains plug is docked on chassis to switch over to battery power. A box with 60 x AA cells and 5 Alkaline D cells is quite economic to power it and can be in a replica case.

The mixer and oscillator are two separate tubes, allowing reliable operation to 30MHz at end of LT. The BFO on/off (for CW, or possibly SSB) is also RF gain when the BFO is on. There are two 1U4 for the IF amp. A second IU5 is the BFO.

Performance may be better than the Zentith Transoceanic and the RCA and Hallicrafter versions of it, but at expense of half the battery life! The electrical band spread allows easy tuning even though it's continious coverage from about 540KHz to 30MHz in only four bands that slightly overlap..

Michael Watterson, 09.May.16

Weitere Posts (2) zu diesem Thema.

S-72

Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

Colecciones

Contribuciones en el Foro acerca de este modelo: Hallicrafters, The;: S-72

hallicraft: S72R