PHILCO MOD. 12A5 YEAR 1973.

The PHILCO MOD. 12A5 is A cubic design  12 inches B/W portable television set with 6 programs preselection keyboard and manual potentiometers search tuning system from PHILCO.

It has icorporated antenna 's and it can even powered by a 12Volt plug (I.E. in a CAR) or classic mains.Recently, it has become more popular than ever to watch TV in a car as the number of cars increases. In general, a storage battery of 12 volts is used in small cars while one of 24 volts is used in large cars so that there is a disadvantage that a separate power supply device is required for driving a TV set in compliance with the respective battery used in the car. The present invention relates to a power supply circuit of a television receiver used in an automobile, and in particular to a power supply circuit of a television receiver which enables two different voltages from two kinds of supply respectively mains at 220v and dc 12v.

It has 6 programs preselection with potentiometric keyboard for tuning search.The use of voltage-variable diode-capacitors, such as varactor diodes, permits the electronic tuning of radio receivers and television receivers by the use of DC control voltages; so that the tuning elements no longer need to be intimately associated with the tuner. Thus, the tuned circuits of the tv receivers may be located remotely from the devices used to provide the necessary DC tuning voltages. In addition, the compact size of the voltage-variable diode-capacitor tuning circuits makes it desirable to use such tuning circuits in many tv applications which formerly used mechanically adjusted variable capacitors or the like as the tuning elements.

To employ voltage-variable diode capacitors in pushbutton tvs, however, especially in multiband pushbutton tv sets , a problem exists in providing a "memory," so that operation of a pushbutton will provide consistent tuning of the tv receiver to the station which is to be selected by that pushbutton. In addition it is necessary to provide some means for providing the initial tuning of the tv receiver for each pushbutton location in a manner which is reliable and inexpensive.

On the front of the screen there is a dark glass.

 Here you can see a nice PHILCO Washing Machine.

Philco, the Philadelphia Storage Battery Company (formerly known as the Spencer Company and later the Helios Electric Company), was a pioneer in early battery, radio, and television production as well as former employer of Philo Farnsworth, inventor of cathode ray tube television. It is currently a brand of Philips.
Philco's rise to the top of radio makers was an amazing feat. While other makers like Atwater-Kent, Zenith Electronics, RCA, and many now-forgotten others (Freshman Masterpiece, FADA Radio, AH Grebe, etc.) sold many battery-powered radios in the early 1920s, Philco made only batteries, "socket power" units, and battery chargers. With the invention of the rectifier tube, which allowed radios to be operated from the wall socket, Philco knew their business was doomed, and decided in 1926 to get into the booming radio business. By 1930 they would sell more radios than any other maker and hold that first place position for over 20 years.
Philco built many iconic radios and TV sets, including the classic cathedral-shaped wooden radio of the 1930s (aka the "Baby Grand"), and the very futuristic (in a 1950s sort of way) Predicta series of television receivers.
Philco started experimenting with television in the early 30s and financed for a while the experiments of Philo T. Farnsworth, considered by many as the “father of television.”An experimental TV station was licensed to Philco in 1931, one of the first all-electronic television ;

Granting of such experimental broadcasts by the FCC was common practice at that time, as television took its first tentative steps in New York City, Schenectady, and Philadelphia. While the rest of the country remained oblivious to the new medium, viewers in those cities bought several thousand sets to watch the limited schedule of programs transmitted by pioneering broadcasters of the East Coast who jumped at the opportunity to go from experimental to commercial television broadcasting.

By 1937, Philco was using an experimental 441-line television system which utilized a 12” television receiver—a direct, but bulky competitor to David Sarnoff’s RCA 12” set.

Along with the stations that would become WNBC-TV and WCBS-TV in New York City and WRGB-TV in Schenectady, WPTZ-TV, Philco Corporation's station in Philadelphia, gravitated to sports to fill air time.

On October 5, 1940, when there were about 700 sets scattered throughout the Philadelphia area, Philco broadcast the University of Pennsylvania's Quakers 51-0 victory over the University of Maryland at Franklin Field.

Today, the Philco brand name is carried by several different companies and holding groups throughout the world.

Philco International

In 1974, 13 years after purchasing the Philco Corporation, Ford begins divesting part of the Philco business by selling the Consumer Electronics Division to GTE Sylvania. Three years later, Philco International is purchased by White Consolidated Industries (WCI). In 1986, Philco and WCI are purchased by AB Electrolux of Sweden. And, in 1988, Philco finally moves out of Philadelphia to Pittsburgh, to join other WCI affiliates.

Itautec-Philco S.A.

In 1989, Philco-Brasil is bought by the group Itaúsa, part of Bank Itaú. Most of its plants are centered around three plants in Manaus for the manufacture of TV sets, video cassettes, fax machines, printers, and PC boards.

Philco-Argentina

It is owned by Jorge Blanco Villegas and has a plant in Ushuaia, Tierra del Fuego. It manufactures mostly Semi Knock Down (SKD) type components, i.e., fabrication of pre-assembled PC boards and components. The German company VDO imported Philco-Argentina auto radios into Brazil for a while¾but with little success.

Philco-Italia S.P.A.

During the 70s, Philco-Italia became part of Bosch-Siemens and was subsequently acquired in 1987 by the Gruppo Merloni with Felice Colombo as president. It currently manufactures refrigerators and air conditioners in northern Italy having distributors in all 5 continents, Philco G.B. Ltd. in England, Philco Trading in Egypt, Bendix Unit B1 in Australia, among others.

Some References:

"Archived copy". Archived from the original on 2013-07-10. Retrieved 2014-04-13.
AntonioMerloni.it Archived 2006-10-04 at the Wayback Machine

Eschner, Kat. "The Farmboy Who Invented Television". smithsonianmag.com. Retrieved 24 April 2018.

"The Museum of Broadcast Communications - Encyclopedia of Television - Farnsworth, Philo". www.museum.tv. Archived from the original on 30 April 2017. Retrieved 24 April 2018.

Mahon, Morgan E. A Flick of the Switch 1930–1950 (Antiques Electronics Supply, 1990), p.117.

A Brief History of Philco Archived 2005-08-02 at the Wayback Machine Oldradio.com

Internal Philco Corp. document Philco-Ford Image, by Glenn Allison, app. 1965

Mahon, p.116.

Mahon, p.127.

Peck, Merton J. & Scherer, Frederic M. The Weapons Acquisition Process: An Economic Analysis (1962) Harvard Business School p.619

Internal Philco Corp. book The Story Of The Philco Franchise, 1954

MZTV - Museum of Television http://www.mztv.com/newframe.asp?content=http://www.mztv.com/predicta.html Archived 2013-11-20 at the Wayback Machine

Wall Street Journal, "Philco Claims Its New Transistor Outperforms Others Now In Use", December 4th 1953, page4

Saul Rosen (Jun 1991). PHILCO: Some Recollections of the PHILCO TRANSAC S-2000 (Computer Science Technical Reports / Purdue e-Pubs). Purdue University. Archived from the original on 2016-03-04.

https://docs.lib.purdue.edu/cgi/viewcontent.cgi?referer=&httpsredir=1&article=1890&context=cstech. Missing or empty |title= (help)

"Fifth Generation Computers - Patents and Licensing". www.fifthgen.com. Archived from the original on 4 October 2017. Retrieved 24 April 2018.

Saul Rosen (Jul 1968). Electronic Computers —- A Historical Survey in Print (Computer Science Technical Report). Purdue University Department. Archived from the original on 2016-03-04.

Inventing the Electronic Century, Author: Alfred Dupont Chandler Jr., Page 40

The Philco Serviceman, September 1955, Volume 23 No.9

Wall Street Journal: "Radio Men Told Of Rapid Counter", March 25, 1955

Wall Street Journal, "Chrysler Promises Car Radio With Transistors Instead of Tubes in '56", April 28, 1955, p.1

Hirsh, Rick. "Philco's All-Transistor Mopar Car Radio". Allpar.com. Archived from the original on June 3, 2013. Retrieved June 1, 2013.

"Mopar 914-HR Ch= C-5690HR Car Radio Philco, Philadelphia" (in German). Radiomuseum.org. Archived from the original on October 16, 2013. Retrieved June 1, 2013.

Walter P. Chrysler Museum, "Archived copy". Archived from the original on 2014-01-02. Retrieved 2016-03-18.

Philco TechRep Division Bulletin, May–June 1955, Volume 5 Number 3, page 28

Wall Street Journal; June 28 1955; page 8; "Phonograph Operated On Transistors to Be Sold by Philco Corp."

"TPA-1 M32 R-Player Philco, Philadelphia Stg. Batt. Co.; USA" (in German). Radiomuseum.org. June 28, 1955. Archived from the original on October 21, 2013. Retrieved June 1, 2013.

"The Philco Radio Gallery - 1956". Philcoradio.com. March 12, 2012. Archived from the original on June 21, 2013. Retrieved June 1, 2013.

Digital Computer Newsletter, Office of Naval Research (unclassified), April 1957, pages 7-8

Chicago Tribune, March 23, 1958, "All Transistor Computer Put on Market by Philco", page A11

Rosen, Saul, "Recollections of the Philco Transac S-2000" Archived 2011-06-29 at the Wayback Machine, IEEE Annals of the History of Computing, vol. 26, no. 2, pp. 34-47, Apr.-June 2004.

"Profile: Philco" Archived 2010-09-20 at the Wayback Machine, Computer History Museum

Philco Corporation, "Philco Transac S-2000 Information Brochure" Archived 2010-07-07 at the Wayback Machine, 1958

Gilchrist, Bruce, "Remembering Some Early Computers, 1948-1960" Archived 2012-10-22 at the Wayback Machine, Columbia University EPIC, 2006, pp.7-9. (archived 2006)

Los Angeles Times, June 02, 1959, page 10

Wall Street Journal, October 09, 1957, page 19: "Philco Says It Is Producing A New Kind Of Transistor"

Fortune Magazine, September 1959 issue, page 55

The New York Times, June 01, 1959, pages 37,41

Dethloff, Henry C. (1993). "Chapter 5: Gemini: On Managing Spaceflight". Suddenly Tomorrow Came... A History of the Johnson Space Center. National Aeronautics and Space Administration. p. 85. ISBN 978-1502753588. Archived from the original on 2015-07-20.

"Big Gain Reported In Purifying Water". The Toledo Blade. Associated Press. 1971-09-09. Retrieved 2013-10-24.

Ford Motor Company 1973 Annual Report, page 15

"Company History". Archived from the original on 2014-10-31.

"Archived copy". Archived from the original on 2016-03-04. Retrieved 2014-12-05.

"IG.com.br". ig.com.br. Archived from the original on 20 May 2013. Retrieved 24 April 2018.