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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024

Webmaster:

    Kirt Blattenberger,

    BSEE - KB3UON

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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AirplanesAndRockets.com

Exodus Advanced Communications Best in Class RF Amplifier SSPAs - RF Cafe

Bliley Crystals
October 1944 Radio News Article

October 1944 Radio News
October 1944 Radio 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.

Special Insert: Radio-Electronic Engineering Department

Bliley Electric Company is one of the relatively few companies that advertised regularly in electronics magazines during the World War II era that is still in business today - at least under the same name (Bliley Technologies now, but still the same base name). While the company is no longer located in the Union Station Building as indicated by the 1944 Radio News magazine appearance, it does still live in Erie, Pennsylvania, only a few miles from where Melanie and I live just west of the Erie International Airport. They still make crystals today. Here is a 2018 article about Bliley's operations from the Erie Times News newspaper.

Bliley Crystals Advertisement

Bliley Crystals, October 1944 Radio News - RF CafeA New Twist to Crystal Cleaning

This is an actual photograph of the centrifugal air drier, or "spinner," used in Bliley production to facilitate clean handling of crystals during finishing and testing operations. Quartz blanks are dried in 5 seconds in this device which is powered with an air motor and spins at 15,000 r.p.m.

Little things like lint or microscopic amounts of foreign material can have a serious effect on crystal performance. The "spinner" eliminates the hazards encountered when crystals are dried with towels and makes certain that the finished product has the long range reliability required and expected in Bliley crystals.

This technique is only one small example of the methods and tests devised by Bliley Engineers over a long period of years. Our experience in every phase ,of quartz piezoelectric application is your assurance of dependable and accurate crystals that meet the test of time.

Bliley Electric Company    Erie, PA

 

 

Posted March 31, 2021

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