Search RFC: |                                  
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

Formulas | Data

Electronics | RF
Mathematics
Mechanics
Physics


Calvin & Phineas

kmblatt83@aol.com

Archive | Sitemap

Resources

Articles | Radar
Cogitations
Magazines | AI
RF Museum
Software | Videos
Radio Service
Tech Notes

Entertainment

Crosswords
Humor | Podcasts
Quotes | Quizzes
Tech Comics

Parts | Services

1000s of Listings


About RF Cafe

Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook
Please Support My Advertisers!
Transcat | Axiom Test Equipment - RF Cafe
Aegis Power | Centric RF | RFCT
Empower RF | Reactel | SF Circuits

Alliance Test | Isotec
KR Electronics (RF Filters) - RF Cafe

Anritsu MG36021A Microwave Frequency Synthesizer Module  - RF Cafe

Windfreak Technologies Frequency Synthesizers - RF Cafe
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Innovative Power Products (IPP) Directional Couplers - RF Cafe

everythingRF AI Artificial Intelligence Client - 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 Cascade Workbook - RF Cafe

Stromberg-Carlson No. 69, 4-Tube All-Wave Superhet. Selector (Converter) Radio Service Data Sheet
January 1935 Radio-Craft

minimum height spacer

January 1935 Radio-Craft

January 1935 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.

Stromberg-Carlson No. 69 (RadioMuseum.com) - RF CafeRadio Service Data Sheets were published by various electronics trade magazines back in the early to middle decades of the last century. SAMS Photofact document sets were published on just about every appliance made, and those had much more detail than these briefs. However, for the low-budget repair shop or the do-it-yourselfer, the Radio Service Data Sheets were a godsend. I have been scanning, cleaning up, and posting all the ones I find in my vintage electronics magazine collection. See a complete list at the bottom.

Many fine examples of restored vintage radios can be found on the Internet. The Stromberg-Carlson No. 69 shown above appears on the RadioMuseum.com website. See also Tom Bavis' AudioPhool.com website for an extensive collection of Stromberg-Carlson photos, datasheets and Sam's Photofacts files.

Stromberg-Carlson No. 69 4-Tube All-Wave Superhet. Selector (Converter)

The manner of connecting the combination inverted-L and doublet antenna system recommended for use with this ·type of short-wave converter is described in Part II of the article, "Important Facts About the New All- Wave Antenna Systems," (RADIO-CRAFT, August 1934, p 84); note Fig. 7 in the article.

Position A of the range switch establishes a straight-through connection from the an-tenna to the standard broadcast, 200 to 550 meter receiver with which the selector or converter is being operated. The output of the selector, at· 545 kc., is fed through a grounded shield; one output lead connects to the antenna post of the set, and the other connects to the ground post.

Stromberg-Carlson No. 69 4-Tube All-Wave Superhet. Selector (Converter) Radio Service Data Sheet, January 1935 Radio-Craft - RF Cafe

 

Posted 


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 255 Radio Service Data Sheets as of April 30, 2025.

Crane Aerospace & Electronics (RF & Microwave) - RF Cafe