Search RFCafe.com                           
      More Than 18,000 Unique Pages
Please support my efforts by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™
Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post
Please Support My Advertisers!
 
  Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
 About | Sitemap
Homepage Archive
        Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos
     Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings
Software: RF Cascade Workbook | Espresso Engineering Workbook
RF Stencils for Visio | RF Symbols for Visio
RF Symbols for Office | Cafe Press
Aegis Power | Alliance Test | Centric RF | Empower RF | ISOTEC | Reactel | RFCT | San Fran Circuits
LadyBug RF Power Sensors

KR Electronics (RF Filters) - RF Cafe

Windfreak Technologies Frequency Synthesizers - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

RF Electronics Shapes, Stencils for Office, Visio by RF Cafe

Allied Radio Corp., Knight Model E10913
Radio Service Data Sheet  (Chassis 118B)
January 1939 Radio-Craft

January 1939 Radio-Craft

January 1939 Radio-Craft Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio-Craft, published 1929 - 1953. All copyrights are hereby acknowledged.

Photographs of some - maybe even most - of the vintage vacuum tube radios are difficult or even impossible to find online. This Knight Model E10913 tabletop radio manufactured by Allied Radio Corporation is an example. When I post these Radio Service Data Sheets from magazines like Radio-Craft, I always attempt to find a photo of a restored radio or at lease a one in decent condition. Websites like The Radio Attic and Radio Museum have large inventories of photos, schematics, and sometimes a description and company history. eBay and Etsy are also a good place to look. There are still many people who restore and service these vintage radios, and often it can be difficult or impossible to find schematics and/or tuning information. Accordingly, a running list of all data sheets is at the bottom to facilitate a search. Most radio service shop technicians were able to troubleshoot and align these simple sets without any kind of documentation.

Allied Radio Corp., Knight Model E10913 Radio Service Data Sheet

Allied Radio Corp., Knight Model E10913 Radio Service Data Sheet, January 1939 Radio-Craft - RF Cafe4-Tube Battery Superhet.; Uses New 1.4V. Tubes; P.M. Dynamic Speaker; Single 1,000-Hour Battery; "A" Drain Only 0.2-A.; "B" Drain Only 0.8 ma.

ALIGNMENT

Before starting alignment, check the tuning dial adjustment by tuning condenser to full capacity and moving the dial needle to line up with the last line at the low-frequency end of the dial scale. Align the set in the order given.

Voltage measurements from socket contacts to ground with 1,000 ohms/volt meter; 90 volts "B"; 1½ volts "A". "NC" above means no connections.

Above, schematic circuit of the battery receiver illustrated at left.

 

 

Posted October 17, 2023
(updated from original post on 2/19/2016)


Radio Service Data Sheets

These schematics, tuning instructions, and other data are reproduced from my collection of vintage radio and electronics magazines. As back in the era, similar schematic and service info was available for purchase from sources such as SAMS Photofacts, but these printings were a no-cost bonus for readers. There are 227 Radio Service Data Sheets as of December 28, 2020.

RF Electronics Shapes, Stencils for Office, Visio by RF Cafe
Innovative Power Products Cool Chip Thermal Dissipation - RF Cafe

TotalTemp Technologies (Thermal Platforms) - RF Cafe

ConductRF Phased Matched RF Cables - RF Cafe