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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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Sangamo Electric Company Advertisement
September 1949 Radio & Television News Article

September 1949 Radio & TV News
September 1949 Radio & Television News Cover - RF Cafe[Table of Contents]

Wax nostalgic about and learn from the history of early electronics. See articles from Radio & Television News, published 1919-1959. All copyrights hereby acknowledged.

This advertisement would never pass muster with the politically correct crowd of today! Even though, as with the Washington Redskins football team, Red Man chewing tobacco, Indian Motorcycles, Land O'Lakes food company (see a huge list of official company trademarks with Indians in them), American Indians are without exception used as a depiction of strength, high quality, high integrity, and beauty, a very, very, very tiny minority of rabble rousers are having their way with the vast, vast, vast majority. Somehow that has become the norm in society today. If the goal is to upset everyone and to pit good people against each other, then it has been a resounding success. For the record, I reject the idiocy and buck their efforts whenever possible... like right now.

Sangamo Electric Company Ad

"Get out of the woods" with the Sangamo Pathfinder*

*The Service Proved Molded Paper Tubular

The Sangamo Pathfinder. Type 30 Molded Tubular. The better, trouble-free, thoroughly service-proved plastic paper tubular capacitor.

Sangamo Electric Company Ad, September 1949 Radio & Television News - RF Cafe

Introduced by Sangamo in 1946 as the first tubular paper capacitor to be molded in a thermo-setting plastic, the Type 30 is thoroughly service-proved!

Used extensively by television manufacturers - preferred by service men - the Type 30 offers these proven advantages ... Especially designed flexible leads that resist breakage and can't pull out! ... No wax to run when heat is applied ... Element is never damaged in fabrication (less heat and pressure is used in molding the thermo-setting plastic case) - this means greater dependability - no "hot spots."

Try these stable, '" rugged, long-lived paper tubulars - you'll like them! See your Jobber. If he can't supply you, write us for folder No. 820.

Your Assurance of Dependable Performance

The Sangamo Tribe

Paper Mica Silver Eletrolytic Capacitors

Sangamo Electric Company

Springfield, Illinois

In Canada: Sangamo Company Limited, Leaside, Ontario

50th Anniversary


1899 - 1949



Posted July 17, 2015

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