S-72

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

Dati

Forum

Immagini

Collezioni

Paese
USA (Stati Uniti d'America)

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

Anno
1949–1953

Categoria
Ricevitore amatoriale (può includere bande broadcast)

Radiomuseum.org ID
43904

Immagini
Schemi

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)

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

Specifiche tecniche

Numero di tubi
8

Valvole
1T4 1U4 1R5 1U4 1U4 1U5 1U5 3V4

Principio generale
Supereterodina con stadio RF; ZF/IF 455 kHz

N. di circuiti accordati
9 Circuiti Mod. Amp. (AM)

Gamme d'onda
Onde medie (OM) e più di 2 gamme di onde corte (> 2 x OC).

Tensioni di funzionamento
Rete / Batterie (ogni tipo) / 105-125 Volt

Altoparlante
AP magnetodinamico (magnete permanente e bobina mobile) / Ø 5 inch = 12.7 cm

Materiali
Pelle / stoffa / plastica ma con altro materiale sottostante

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

Forma
Apparecchio portatile > 20 cm (senza la necessità di una rete)

Dimensioni (LxAxP)
14 x 12.2 x 7.25 inch / 356 x 310 x 184 mm

Annotazioni
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 netto
7.2 kg / 15 lb 13.7 oz (15.859 lb)

Prezzo nel primo anno
109.95 $

Fonte esterna dei dati
Ernst Erb

Fonte dei dati
The Radio Collector's Directory and Price Guide 1921 - 1965

Riferimenti schemi
Rider's Perpetual, Volume 20 covering 1950

Bibliografia
Communications Receivers

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

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

Letteratura / Schemi (4)
Sears, Roebuck Catalogs (Silvertone) (Fall/Winter 1950, page 744.)

Altri modelli
In questo link sono elencati 898 modelli, di cui 468 con immagini e 493 con schemi.
Elenco delle radio e altri apparecchi della Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

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Il modello fa parte delle collezioni dei seguenti membri.

Forum

Discussioni nel forum su questo modello: Hallicrafters, The;: S-72

Argomenti: 1 | Articoli: 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

Collezioni

Discussioni nel forum su questo modello: Hallicrafters, The;: S-72

hallicraft: S72R