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Sherlock Ohms: The Singing Telephone Switch

 

Sherlock Ohms: The Singing Telephone Switch - RF CafeThis adventure of Sherlock Ohms is useful to read because it demonstrates the importance of finding the root cause of and truly correcting a problem rather than stopping when a lesser solution that is merely a 'band aid' type cure would be easier. The less desirable action would have been to de-rate the number of circuits that could be serviced by each system since it was initially discovered that the problem only occurred when the board count went above a certain critical count. Fortunately for the manufacturer, Mr. Davies kept on the trail and hunted down the true source of oscillations and implemented a very simple fix.

BTW, if you have an interesting story to tell and would like to have it published here in the RF Cafe "Out of Order" series, please let me know. I have a hard time getting people to participate for some reason, so your contribution would be a great help in generating interest.

Out-of-Order Archives

Do you have a good work-related anecdote to share? Please email it to me for consideration. Thanks.

- The Singing Telephone Switch 

- The Professor-Provided Cheat Sheet

- TV DXing, and the Dog on the Roof

- Occam's Razor for Water Bottles

- Of Pointy-Haired Bosses

- Attack of the Cookie Monster

- Tracking Down a Mystery Signal

- Low Battery in Multimeter = High Voltage Scare

 

 

 

 

Posted  October 22, 2014

Werbel Microwave (power dividers, couplers)

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 tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

Copyright  1996 - 2026

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

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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