K725 Ch= 7K01 early, no "saver"
Zenith Radio Corp.; Chicago, IL
- Country
- United States of America (USA)
- Manufacturer / Brand
- Zenith Radio Corp.; Chicago, IL
- Year
- 1952
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 73579
-
- alternative name: Chicago Radio Lab
Beitman
Q = ebay objnr : 120136396366
Q = ebay objnr : 120136396366
Q = ebay objnr : 120136396366
Q = ebay objnr : 120136396366
Zenith K725 7K01 Early Chassis Restored
Zenith manual
Print Advertise 1955
Print Advertise 1955
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)
- Tuned circuits
- 7 AM circuit(s) 11 FM circuit(s)
- Wave bands
- Broadcast (BC) and FM or UHF.
- Power type and voltage
- AC/DC-set / 117 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: K725 Ch= 7K01 [early, no "saver"] - Zenith Radio Corp.; Chicago,
- Shape
- Tablemodel without push buttons, Mantel/Midget/Compact up to 14
- Dimensions (WHD)
- 400 x 240 x 220 mm / 15.7 x 9.4 x 8.7 inch
- Notes
- This is the early model K725. 10 Years later Zenith introduced a K725 as K725L, B, C and W with quite an other case and chassis. The K725 early has a Selenium Rectifier.
After a short time the models received a "Tube Saver" and we introduced therefore a variant to be able to distinguish. Please be careful where to place pictures.
- Source of data
- Collector's Guide to Antique Radios 4. Edition
- Literature/Schematics (1)
- Beitman Radio Diagrams, Vol. 13, 1953 (SAMS Photofact set 212, folder 10, August 1953)
- 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
Collections
The model K725 is part of the collections of the following members.
Forum contributions about this model: Zenith Radio Corp.;: K725 Ch= 7K01
Threads: 1 | Posts: 2
My version of this model has a feature called Tube Saver. The manufacture date was Jan 12, 1953, and the model numbers show no variation as a result of this added feature. The model number is K725, the chassis is 7K01. The bottom label states K725 Walnut. This information is added at the request of Ernst Erb. You can also see this device on model H511 as contributed by Mario Bermejo.
Attachments
- 2008_05230001 (73 KB)
- 2008_05230002 (49 KB)
- 2008_05230003 (59 KB)
- 2008_05230004 (29 KB)
- 2008_05230006 (37 KB)
Dave Turner, 24.May.09