Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!

Innovative Power Products Passive RF Products - RF Cafe

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

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

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Anatech Electronics RF Microwave Filters - RF Cafe

Du Mont "Duoscopic" Television Receiver
March 1954 Radio & Television News

March 1954 Radio & TV News
March 1954 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.

The Duoscope, as presented in a 1954 issue of Radio-News magazine, was a pretty neat concept - sort of like a picture-in-picture (PiP) scheme for television, only in a way much better. Whereas PiP provides only a partial screen for each television program, Du Mont's "Duoscopic" viewer somehow received two independent signals and combined them on the screen in such a manner that there was both a horizontally polarized for one show and a vertically polarized image for the other. The viewer selected which picture to watch by wearing the appropriately polarized glasses or by watching through a floor-mounted transparent, polarized screen. I suppose that while wearing glasses, tilting you head resulted in a mixture of both programs, so the fixed screen would be the best option. The superimposed image on the CRT looked a lot like a virtually indiscernible 3-D picture as seen without colored glasses. Similarly, the audio for each program was selectable using a remote (wired) switch box. Headphones were used to provide private listening. The Duoscope turned out to be just another "outside the box" concept that never played out in the consumer world.

Du Mont "Duoscopic" Television Receiver

Du Mont "Duoscopic" Television Receiver, March 1954 Radio & Television News - RF CafeA wife can watch a variety show while her husband enjoys a different program at the same time on the same screen on the new Du Mont "Duoscopic" television receiver. Viewing is done through polaroid glasses or polaroid panels. By reversing the glasses or panels, the viewer can choose the alternate of the two programs tuned in. Individual earphones are used to separate the sound portions of the programs. A remote control unit permits the viewer to listen to either of the two programs.



Posted January 13, 2021

Anatech Electronics RF Microwave Filters - RF Cafe
RF Cascade Workbook 2018 by RF Cafe

Copper Mountain Technologies (VNA) - RF Cafe

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products