Search RFCafe.com _|_________
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
ConductRF Phased Matched RF Cables - RF Cafe

Werbel Microwave (power dividers, couplers)

RF Cascade Workbook 2018 by 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

LadyBug LB5954L Power Sensor with LAN Option - RF Cafe

Reader Service Cards
May 1969 Electronics World

May 1969 Electronics World

  Table of Contents 

Wax nostalgic about and learn from the history of early electronics. See articles from Electronics World, published May 1959 - December 1971. All copyrights hereby acknowledged.

Are you old enough to remember when Reader Service Cards were inserted into the binding of magazines? They were the old world version of website URLs and QR (quick response) scan codes. Each advertisement in the magazine had a Reader Service Number printed on it, so you would take your pen and draw circles around the matching numbers on the Reader Service card, then mail it to the publisher. Sometimes it would take months to get information in return - if you got it at all. A typical Reader Service Card is shown below. Look at the bottom of the Poly Paks ad to see "Circle No. 96 on Reader Service Card."

Electronics-Themed Comics

Reader Service Card, May 1969 Electronics World - RF Cafe

Reader Service Card

Poly Paks Advertisement - RF Cafe

Poly Paks Ad with Reader Service number at the bottom

 

 

Posted February 15, 2018


These Technically-Themed Comics Appeared in Vintage Electronics Magazines. I personally scanned and posted every one from copies I own (and even colorized some). 235 pages as of 6/28/2024

 

LadyBug LB5954L Power Sensor with LAN Option - RF Cafe
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Innovative Power Products (IPP) RF Combiners / Dividers

TotalTemp Technologies (Thermal Platforms) - RF Cafe