Search:                        
Please support my efforts by ADVERTISING!
Serving a Pleasing 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
Electronics Illustrated

Formulas | Data

Electronics | RF
Mathematics
Mechanics
Physics


Calvin & Phineas

Archive | Sitemap
kmblatt83@aol.com

Resources

Radar | AI
Cogitations
RF Museum
Videos | Pics |
Things | Logos
Radio Datashts
WJ Tech Notes
Day in History

Entertainment

Crosswords
Humor | Podcasts
Quotes | Quizzes
Tech Comics

Parts | Services

1000s of Listings


About RF Cafe

Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook
RF Electronic Stencils Symbols Visio Shapes Office

"This Is DigiTalker"

Marvel's Avengers: Age of Ultron - RF Cafe WebsiteWhile watching the Avengers: Age of Ultron movie, at some point when one of the computer voices was speaking, a memory of the "This Is DigiTalker" voice suddenly came to mind. Back in the mid-1980s while working at Westinghouse in Annapolis, Maryland, a couple of the engineers brought a DigiTalker prototype experimentation board into the super-classified area where I worked. According to National Semiconductor's datasheet, it was introduced sometime around 1980. The programmable digital voice IC was a big deal in that unlike other devices that had a fixed set of phrases (see my frightening Clarance the Stack-A-Round Clown), DigiTalker had a large list and could, in later versions, potentially speak almost anything. It was a big deal at the time. DigiTalker went on to become "The Voice of the Elevator Industry."

DIGITALKER MM54104 IC - RF Cafe Website

National Semiconductor' MM54104 DIGITALKER

DIGITALKER Video

DIGITALKER datasheet (Jameco) - RF Cafe Website

Datasheet for National Semiconductor's DT1050 DIGITALKER Vocabulary Kit

Johanson Technology Hi-Q Porcelain Capacitors - RF Cafe
Please Support My Advertisers!
Aegis Power | Centric RF | RFCT
Empower RF | Reactel | SF Circuits

Alliance Test | Isotec
Werbel Microwave power dividers, couplers - RF Cafe

Espresso Engineering Workbook

DAS DEALS Marketplace, Buy Sell RF Connectors - RF Cafe
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

LadyBug Technologies-LBSF09A Power Sensor - RF Cafe - RF Cafe

PCB Directory (Manufacturers) - 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

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel