52B1U "Escort" Ch= HS-305
Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
- Year
- 1953/1952 ?
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 48859
Beitman
eBay item number:126135219849
eBay item number:126135219849
eBay item number:126135219849
Picture from service manual.
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 4
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Line / Batteries (any type) / AC/DC 117V =110-120/ 67.5 & 3 Volt
- Loudspeaker
- Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3.5 inch = 8.9 cm
- Material
- Plastics (no bakelite or catalin)
- from Radiomuseum.org
- Model: 52B1U "Escort" Ch= HS-305 - Motorola Inc. ex Galvin Mfg.Co
- Shape
- Portable set > 8 inch (also usable without mains)
- Dimensions (WHD)
- 8.25 x 6.28125 x 2.3125 inch / 210 x 160 x 59 mm
- Notes
-
The Motorola 52B1U is an AC/DC/Battery operated 4 tube portable AM receiver. The AM band frequency tuning range is 535-1620kHz. When operating from batteries, uses Qty(1) 67.5V "B" battery and Qty(2) 1.5V "D" size flashlight batteries. Has Selenium rectifier used during AC/DC operation.
The following models use the same schematic and chassis but have different cabinets and/or cabinet colors:
Model Cabinet Colors 52B1U Black and Chrome 52B2U Green (Green simulated alligator) 52B3U Brown (Rodeo-Design Tan) 52B4U Tan (Suntan) 52B5 Black 52B6 Dove Gray 52B7 Grass Green 52B8 Flame Red 52B9 Hot Chocolate 52B10 Middy Blue 52B11 Clover Pink 52B12 Azure Blue
- External source of data
- Ernst Erb
- Source of data
- Collector's Guide to Antique Radios 4. Edition
- Circuit diagram reference
- Beitman Radio Diagrams Vol. 12, 1952
- Mentioned in
- The Radio Collector's Directory and Price Guide 1921 - 1965 (Motorola Folder No. 3201 and 3301 for 1952)
- Literature/Schematics (1)
- Rider's Perpetual, Volume 23 (last) = covering up to 1954 (Riders 23-44 to 23-50)
- Literature/Schematics (2)
- - - Manufacturers Literature (Motorola Datasheet 68P620375-0)
- Literature/Schematics (3)
- Photofact Folder, Howard W. SAMS (Set 190, folder 10 Dated 1-53)
- Literature/Schematics (4)
- Beitman Radio Diagrams, Vol. 12, 1952 (Page 82)
- Other Models
-
Here you find 4647 models, 2971 with images and 4146 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)
Forum contributions about this model: Motorola Inc. ex: 52B1U "Escort" Ch= HS-305
Threads: 1 | Posts: 2
There seems to be an inconsistency here.
Models 52B1U, 52B2U and 52B3U have originally been created from Rider's and/or Beitman, and subsequently amended with images from Motorola folders.
On these folders, the models are called 52B. This is in accordance with a more detailed folder from 1952 that I have available, detailing the following sub-models for 52B.
52B5 - Black
52B6 - Dove Grey
52B7 - Grass Green
52B8 - Flame
52B9 - Hot Chocolate
52B10 - Middy Blue
52B11 - Clover Pink
52B12 - Azure Blue
These models have to be created and the collective material (except schematics) be moved or duplicated to those new models. No chassis information for these models was retrievable, but a number of them could be found on ebay, with their according model type stickers.
Models 52BxU do exist; according to antiqueradioschematic there is also a 52B4U, along with B5 thru 12, all from the original Motoral service documentation.
Who can take care of this? I will provide a digital copy of the folder 1952 (probably including more models that need correcting).
Thanks and kind regards
Mark
Mark Hippenstiel, 25.Jul.14