S-72

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

Données

Forum

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Collections

Pays
Etats-Unis

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

Année
1949–1953

Catégorie
Récepteur amateur (bandes amateurs, ev. avec bande AM)

Radiomuseum.org ID
43904

Images
Schémas

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)

Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.

Spécifications techniques

No. de tubes
8

Lampes / Tubes
1T4 1U4 1R5 1U4 1U4 1U5 1U5 3V4

Principe général
Super hétérodyne avec étage HF; FI/IF 455 kHz

Circuits accordés
9 Circuits MA (AM)

Gammes d'ondes
PO et plus que 2 x OC

Tension / type courant
Secteur et Piles (tous types). / 105-125 Volt

Haut-parleur
HP dynamique à aimant permanent + bobine mobile / Ø 5 inch = 12.7 cm

Matière
Cuir / canvas / plastique mais autre matériel en dessous!

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

Forme
Portative > 20 cm (sans nécessité secteur)

Dimensions (LHP)
14 x 12.2 x 7.25 inch / 356 x 310 x 184 mm

Remarques
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

Poids net
7.2 kg / 15 lb 13.7 oz (15.859 lb)

Prix de mise sur le marché
109.95 $

Source extérieure
Ernst Erb

Source
The Radio Collector's Directory and Price Guide 1921 - 1965

Source du schéma
Rider's Perpetual, Volume 20 covering 1950

Littérature
Communications Receivers

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

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

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

D'autres Modèles
Vous pourrez trouver sous ce lien 921 modèles d'appareils, 469 avec des images et 516 avec des schémas.
Tous les appareils de Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX

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Contributions du forum pour ce modèle: Hallicrafters, The;: S-72

Discussions: 1 | Publications: 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

Collections

Contributions du forum pour ce modèle: Hallicrafters, The;: S-72

hallicraft: S72R