L721 Ch=7L05

Zenith Radio Corp.; Chicago, IL

Data

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Country
United States of America (USA)

Manufacturer / Brand
Zenith Radio Corp.; Chicago, IL

Year
1954 ?

Category
Broadcast Receiver - or past WW2 Tuner

Radiomuseum.org ID
73556

- alternative name: Chicago Radio Lab

Picture
Schematics

L721 Ch=7L05; Zenith Radio Corp.; (ID = 152725) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)
Beitman

L721 Ch=7L05; Zenith Radio Corp.; (ID = 152726) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)
Beitman

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368358) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368359) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368366) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368367) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368368) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368369) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368370) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368371) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368372) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1193970) Radio — Zenith Radio Corp.; L721 Ch=7L05 (3)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 2689421) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 2689425) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 2689422) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 2689424) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 2689426) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368355) Radio — Zenith Radio Corp.; L721 Ch=7L05 (1)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368362) Radio — Zenith Radio Corp.; L721 Ch=7L05 (1)
Chassis

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368357) Radio — Zenith Radio Corp.; L721 Ch=7L05 (1)
eingebaute AM-Antenne

L721 Ch=7L05; Zenith Radio Corp.; (ID = 368365) Radio — Zenith Radio Corp.; L721 Ch=7L05 (1)
recapped

L721 Ch=7L05; Zenith Radio Corp.; (ID = 136325) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)

L721 Ch=7L05; Zenith Radio Corp.; (ID = 709217) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)
Sams Photofact Folders reference picture.

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1389056) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)
Ebay Seller rdow5 Item No.: 230917331892

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1389057) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)
Ebay Seller rdow5 Item No.: 230917331892

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1389058) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)
Ebay Seller rdow5 Item No.: 230917331892

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1389060) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)
Ebay Seller rdow5 Item No.: 230917331892

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1389061) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)
Ebay Seller rdow5 Item No.: 230917331892

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1389062) Radio — Zenith Radio Corp.; L721 Ch=7L05 (2)
Ebay Seller rdow5 Item No.: 230917331892

L721 Ch=7L05; Zenith Radio Corp.; (ID = 1422194) Radio — Zenith Radio Corp.; L721 Ch=7L05 (1)

Click on the schematic thumbnail to request the schematic as a free document.

Technical Specifications

Number of Tubes
7

Valves / Tubes
6BJ6 12AT7 12BA6 12BA6 12AU6 19T8 35C5

Main principle
Superhet with RF-stage; ZF/IF 455/10700 kHz; 2 AF stage(s)

Tuned circuits
6 AM circuit(s) 9 FM circuit(s)

Wave bands
Broadcast (BC) and FM or UHF.

Power type and voltage
AC/DC-set / 110 - 120 Volt

Loudspeaker
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

Material
Bakelite case

from Radiomuseum.org
Model: L721 Ch=7L05 - Zenith Radio Corp.; Chicago,

Shape
Tablemodel, with any shape - general.

Dimensions (WHD)
12 x 7 x 6.5 inch / 305 x 178 x 165 mm

Notes
Selenium Rectifier.

See also the models reported under R721.

Source of data
Collector's Guide to Antique Radios 4. Edition

Mentioned in
Beitman Radio Diagrams, Vol. 13, 1953

Literature/Schematics (1)
Photofact Folder, Howard W. SAMS (Date 1-54, Set 226, Folder 12)

Author
Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.

Other Models
Here you find 4496 models, 4101 with images and 3615 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Zenith Radio Corp.; Chicago, IL

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The model L721 is part of the collections of the following members.

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