H724Z2 Ch= 7H02Z2
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
- 68232
-
- alternative name: Chicago Radio Lab
Beitman
Copy gen. von Jim Dennis Radio Attic
From the collection of Robert Delamarre
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 455/10700 kHz; 2 AF stage(s)
- Tuned circuits
- 7 AM circuit(s) 8 FM circuit(s)
- Wave bands
- Broadcast (BC) and FM or UHF.
- Power type and voltage
- AC/DC-set / AC/DC 117V =110-120 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: H724Z2 Ch= 7H02Z2 - Zenith Radio Corp.; Chicago,
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 12.75 x 8 x 7.25 inch / 324 x 203 x 184 mm
- Notes
-
The Zenith H723Z2 is an AC/DC operated 7 tube BC and FM receiver. The BC band frequency tuning range is 540-1620kHz. The FM band frequency tuning range is 88-108MHz. Has Selenium Rectifier. Cabinet was available in Maroon, Grey and Green. Uses loop antenna for BC band and line cord for FM antenna, with provisions for connecting an external FM antenna.
WARNING: One side of the AC line is connected to ground on this radio. When servicing this radio, an isolation transformer should be used between the power line and the radio.
- External source of data
- Ernst Erb
- Source of data
- The Radio Collector's Directory and Price Guide 1921 - 1965
- Mentioned in
- Collector's Guide to Antique Radios 4. Edition
- Literature/Schematics (1)
- Beitman Radio Diagrams, Vol. 12, 1952 (Page 161)
- Literature/Schematics (2)
- Rider's Perpetual, Volume 23 (last) = covering up to 1954 (Riders 23-13 to 23-16)
- Literature/Schematics (3)
- Photofact Folder, Howard W. SAMS (Set 178, folder 17 dated 9-52)
- Other Models
-
Here you find 4602 models, 4231 with images and 3736 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 H724Z2 is part of the collections of the following members.
Forum contributions about this model: Zenith Radio Corp.;: H724Z2 Ch= 7H02Z2
Threads: 1 | Posts: 6
I’m restoring a Zenith (ModelH72422) AM/FM radio and have run into a problem with a special temperature compensating resistor (R34) [supposed to measure 100 Ω hot and 750 Ω cold]. R34 is connected to pin 4 of the 6BJ6 tube and pin 3 of the 12BA6 tube and I’m getting readings of around 1.7 mΩ hot and around 167 Ω cold. The radio is receiving stations but at a very low volume. I have no idea how to upgrade this resistor. Can anyone help?
Thanks!
Attachments
- Zenith Schematic (1792 KB)
- Zenith H723z2 Schematic (1792 KB)
Michael Warner, 18.Nov.25