702

Zenith Radio Corp.; Chicago, IL

Données
Forum
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  • Année
  • 1934
  • Catégorie
  • Radio - ou tuner d'après la guerre 1939-45
  • Radiomuseum.org ID
  • 19015
    • alternative name: Chicago Radio Lab

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

 Spécifications techniques

  • No. de tubes
  • 5
  • Principe général
  • Super hétérodyne (en général); FI/IF 456 kHz
  • Circuits accordés
  • 6 Circuits MA (AM)
  • Gammes d'ondes
  • PO et GO
  • Tension / type courant
  • Appareil tous courants (CA / CC) / 115 Volt
  • Haut-parleur
  • HP dynamique à électro-aimant (électrodynamique)
  • Matière
  • Boitier en bois
  • De Radiomuseum.org
  • Modèle: 702 - Zenith Radio Corp.; Chicago,
  • Forme
  • Modèle de table sans poussoirs, modèle cheminée
  • Dimensions (LHP)
  • 300 x 190 x 140 mm / 11.8 x 7.5 x 5.5 inch
  • Source extérieure
  • E. Erb 3-907007-36-0
  • Source du schéma
  • Rider's Perpetual, Volume 5 = ca. 1934 and before

 Collections | Musées | Littérature

Collections

Le modèle 702 fait partie des collections des membres suivants.

 Forum

Contributions du forum pour ce modèle: Zenith Radio Corp.;: 702

Discussions: 4 | Publications: 17

Dear Forum members,

a friend of mine told me that he had radio that is totally identical to the Zenith 702. The only differend ce is the label Windsor at the front panel, instead of the label Zenith. Please look at the pictures.

At the bottom of the Winsor is the same yellowish paper with the instructions.

Th set has also an non original power resistor of 150 Ohms, in series with the heaters.

Pièces jointes

Georges Van Campenhout † 28.4.22, 12.Aug.21

Weitere Posts (1) zu diesem Thema.

I loaded an other schema and a service manual to the model.

 

M stands in old US shemas for Mille.  See Wikipedia:  Mille, the number one thousand, derived from Latin. Kilo is also thousand. So Bryan is right: M means kΩ. = 1 000 Ohm

In German schemas M stands for Meg. = 1 000 000

Heribert Jung, 10.Nov.10

Weitere Posts (1) zu diesem Thema.

Dear collegues,

  Sometimes, one of us need your help. I am following today.

I found in a deplorable situation a radio device Zenith 702 made in 1934 – in   USA .

I bought from USA a schematic of the electronical parts, wich approved to be identical with the schematic wich appears on Nostalgia .

In the drawing attached , the most resistances are marked with M character. Does somebody knows what this mark represents?

Under the chassis , fixed on the wall with caps, is a wire wound resistance , wich, unfortunately is destroyed. Does somebody knows the value of this resistance and the wats, also its position in the drawing?

I am asking Mr. BIRKNER to reply, because I saw that he has a Zenith 702.

  Thank you,

Best regards,

Ion Carabas  (e-mail address: ion.carabas[A*T]coneco.ro) .

Pièces jointes

Ion Carabas, 05.Nov.10

Weitere Posts (14) zu diesem Thema.

117V,Allstrom;Maße:B=300/H=190/T=140;Röhren:6A6/6D6/75/43/25or26;Baujahr 1933;Zf=456kHz;Quelle:eig.Sammlg.

Konrad Birkner † 12.08.2014, 29.Dec.03

Weitere Posts (1) zu diesem Thema.