Search found 279 matches

by KirtB
Thu Jul 27, 2017 9:08 pm
Forum: Miscellany
Topic: Beware the Patent Trolls
Replies: 0
Views: 54

Beware the Patent Trolls

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/patent-troll-inc-magazine.jpg The Toll Troll, by Kris Frieswick, Inc. Nonpracticing entities (NPEs), aka patent trolls, think they're getting a bum rap. Those companies that buy up patents and then search to the ends of the Earth for pot...
by KirtB
Thu Jul 27, 2017 9:07 pm
Forum: Test & Measurement
Topic: Popular Electronics Builds a Vacuum-Tube Voltmeter
Replies: 0
Views: 69

Popular Electronics Builds a Vacuum-Tube Voltmeter

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/rca-voltohmyst.jpg Popular Electronics Builds a Vacuum-Tube Voltmeter, May 1959 Popular Electronics Cafe visitor Terry W. recently wrote to me about a topic that ended up mentioning RCA's vacuum tube voltmeter (VTVM) known as the VoltOhm...
by KirtB
Thu Jul 27, 2017 9:06 pm
Forum: Anecdotes, Gripes, & Humor
Topic: Hi-Fi: The Guest
Replies: 0
Views: 64

Hi-Fi: The Guest

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/hi-fi-the-guest.jpg Hi-Fi: Guest List, May 1959 Popular Electronics This series of comics describing the kinds of reactions you might expect to receive from various people who are visiting your crib and are introduced to your new stereo ...
by KirtB
Thu Jul 27, 2017 5:43 pm
Forum: CAE, CAD, & Other Software
Topic: Analog Devices' ADISimRF v1.7 Released
Replies: 0
Views: 80

Analog Devices' ADISimRF v1.7 Released

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/adisimrf-v1p7-rfcw.jpg Analog Devices' ADISimRF v1.7 Released Analog Devices just announced the release of the latest version of their ADISimRF applet for calculating cascaded RF component parameters. It takes typical input values for up...
by KirtB
Thu Jul 27, 2017 5:40 pm
Forum: Components, Circuits & Systems
Topic: A Review of Transmission Lines as Circuit Elements
Replies: 0
Views: 71

A Review of Transmission Lines as Circuit Elements

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/review-transmission-lines-circuit-elements.jpg A Review of Transmission Lines as Circuit Elements, November 1966 QST Mr. Wilfred Jensby wrote an incredibly detailed article for the November 1966 edition of QST that delves deeply into the...
by KirtB
Thu Jul 27, 2017 5:39 pm
Forum: Amateur Radio
Topic: Foil Those Tube Forgers
Replies: 0
Views: 66

Foil Those Tube Forgers

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/foil-those-tube-forgers.jpg Foil Those Tube Forgers, January 1957 Popular Electronics Gray market electronic components are not just a recent problem. Long before IC foundries were set up in China, Indonesia, Vietnam, etc., to produce co...
by KirtB
Thu Jul 27, 2017 5:12 pm
Forum: Articles & Ads from Electronics Magazines
Topic: Foil Those Tube Forgers
Replies: 0
Views: 47

Foil Those Tube Forgers

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/foil-those-tube-forgers.jpg Foil Those Tube Forgers, January 1957 Popular Electronics Gray market electronic components are not just a recent problem. Long before IC foundries were set up in China, Indonesia, Vietnam, etc., to produce co...
by KirtB
Thu Jul 27, 2017 5:11 pm
Forum: Amateur Radio
Topic: Why Key Clicks?
Replies: 0
Views: 52

Why Key Clicks?

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/why-key-clicks.jpg Why Key Clicks?, October 1966 QST Waveform shaping is essential in today's crowded communications spectrum. Spectral masks are precisely defined in order to prevent "spreading" beyond the allocated frequency ranges at ...
by KirtB
Thu Jul 27, 2017 5:10 pm
Forum: Anecdotes, Gripes, & Humor
Topic: McWatts Comic Strip
Replies: 0
Views: 50

McWatts Comic Strip

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/McWatts-Comic-Strip.jpg McWatts Comic Strip, January 1957 Popular Electronics McWatts was an electronics-themed comic that appeared in Popular Electronics back in the late 1957s. Artist Carl Kohler's main character is a stereotypical Joe...
by KirtB
Thu Jul 27, 2017 5:09 pm
Forum: Anecdotes, Gripes, & Humor
Topic: Time for an iPad Ban?
Replies: 0
Views: 51

Time for an iPad Ban?

http://www.rfcafe.com/miscellany/homepage-archive/2013/images/assault-ipad-ban.gif Time for an Assault iPad Ban It was only a matter of time before someone became a victim of an iPad assault. A story hit the wires this morning about a firefighter in NYC beating his wife in the head with an iPad. "W...