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Topic: Model 500 telephone

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Model 302 telephone

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	Ringer equivalency number - Open Encyclopedia (Site not responding. Last check: 2007-10-17)
		A ringer equivalency number of 1 represents the loading effect of a single "traditional" telephone ringing circuit, such as that within the Western Electric Model 500 desk telephone.
		Note that modern telephone equipment may have a REN significantly lower than 1: as a rough guide, externally-powered digital-ring phones may have a REN as low as 0.2, while modern analogue-ring phones (where the ringer is powered from the phone line) typically have a REN around 0.8.
		The total REN for a subscriber's line is simply the sum of the RENs of all devices connected to the line; this number expresses the overall loading effect of the subscriber's equipment on the central office ringing current generator.
	open-encyclopedia.com /REN (267 words)

	1950s and Newer Telephones LoweTech Phones Home of High Quality Collectibles
		Telephones were offered in a rainbow of colors and heavily marketed by the telephone companies.
		Model 554 Wall Telephone: This is the wall version of the 500 desk set and shares that same familiar ring.
		Model 500 Desk Telephone: Similar in style to the Western Electric 500, it is distinguished by an elegant body contour audience the dial plate and is very heavy.
	lowetechphones.com /1950sandNewerTelephones.html (948 words)

	Glossary of ISDN and Telephone Terminology
		Telephone tariffs regulate the acceptable average grade of service which must be provided on public networks.
		A group of telephone channels configured so that if the first is busy (engaged) the call goes to the next channel, if that channel is busy it goes to the next channel, etc. Hunt groups may hunt from the highest to the lowest, the lowest to the highest, or on some other arbitrary pattern.
		A telephone circuit from a PBX to a telephone on that PBX.
	www.telos-systems.com /techtalk/gldefs.htm (6056 words)

	Privateline.com Telephone History Page 9 -- 1951 to 1965
		Dial tone was first introduced into the public switched telephone network in a German city by the Siemens company in 1908, but it took decades before being accepted, with the Bell System taking the lead.
		And, of course, dial tone was not possible on phones such as crank models, in which you signaled an operator who then later connected your call.
		In the early 1950s The Bell System developed an improved neoprene jacketed telephone cord and shortly after that a PVC or plastic cord.
	www.privateline.com /TelephoneHistory4/History4.htm (2399 words)

	Telephone Timeline - Greatest Engineering Achievements of the Twentieth Century
		Alexander Graham Bell's invention of the telephone in 1876 rang in the era of talking at a distance.
		As telephone transmission extends across and between major cities, "loading coils" or inductors are placed along the lines to reduce distortion and attenuation or the loss of a signal's power.
		What is the world’s longest telephone line consists of 2,500 tons of copper wire, 130,000 poles, three vacuum-tube repeaters, and countless numbers of loading coils.
	www.greatachievements.org /?id=3625 (1679 words)

	NDM \| Henry Dreyfuss \| The Exhibition \| Bell Telephone (Site not responding. Last check: 2007-10-17)
		The unified and balanced form of the model 302 replaced the awkward and ungainly shapes of earlier models.
		Its successor, the model 500 of 1949, was a response to the increased post-war demand for telephone service.
		Since telephones were leased, the new design needed to be easy to service and have an unobtrusive appearance.
	ndm.si.edu /EXHIBITIONS/hd/ex2.html (193 words)

	Micro Seven-Telephone-Call Router, model RT10 (Site not responding. Last check: 2007-10-17)
		The model RT10 receives a call at one line and originates another call at the other line.
		One of the application of the Telephone-Call Router, model RT10 is to enable a outside company salesperson to charge long-distance telephone calls to the company’s main telephone number.
		The prompt signal is 500 Hz, which is slightly different in frequency.
	www.microseveninc.com /rt10.htm (401 words)

	The Telephone Collector.com (Site not responding. Last check: 2007-10-17)
		The first Western Electric handset telephone was the model AA1.
		This is an important model in the evolution of the desk phone.
		Bell introduced this phone at the end of the run of the model 302 to use up the 302 parts, and to get ready for the introduction of the new model 500 sets.
	thetelephonecollector.com /showcat.asp?cat=12 (241 words)

	Model 500 Telephone Test System - Microtronix Systems Acoustic Telephone Test Equipment
		The Model 500 Telephone Test System is a full featured testing solution developed with flexibility and affordability in mind.
		The Model 500 Telephone Test System consists of the Controller Unit, the Measurement Unit, the Central Office Simulator with Modules Unit, and the Acoustic Fixture.
		The Model 500 Units fit standard 19" racks and are stackable.
	www.microtronix.ca /500tts.html (761 words)

	Telephone Models (Site not responding. Last check: 2007-10-17)
		The biggest manufacturer of telephone equipment up through the 1980s was Western Electric, which manufactured the telephones and other equipment for the Bell System.
		The model number or series of a telephone is often printed or stamped on the bottom of the phone (the base).
		This is a Western Electric 500 telephone, the most recent model of basic desk telephone manufactured beginning about 1960.
	www.eskimo.com /~flemco/stuff/phonemodels.html (246 words)

	Vintage Telephones
		Earlier models had a brown cloth cord that often became twisted and tangled; I can remember my dad would untangle the phone cord about once a month after it had become so short that his face was almost in the dial.
		When you see a scene in a 1940s movie that features a nonstandard phone, you may be certain that the director is sending the message that the character is a person of some wealth and influence, like an executive or a gangster's moll.
		This phone is also a curiosity because it looks something like the Model 500, but it is made of hard rubber instead of thermoplastic.
	www.jitterbuzz.com /indtel.html (2252 words)

	The Telephone (Site not responding. Last check: 2007-10-17)
		Telephone service is suspended for one minute (6:25pm-6:26pm) on the entire telephone system in the United States and Canada during the funeral service (4 August).
		- The Japanese attack on Pearl Harbor affects the telephone system of the United States by causing tremendous traffic peaks in all cities, and an increase from 100 to 400 percent in long distance telephoning - which already is at a record high of 3 million messages.
		Bell Telephone Laboratories has a 96-channel PCM experimental system working between Murray Hill, N.J. and NYC and quickly discovers the need for repeaters for long-distance service.On December 23, Bell Telephone Laboratories introduces the germanium point contact transistor and in the following year the alloy junction germanium transistor.
	www.airewav.com /the_telephone.htm (4465 words)

	Access Control Product (Site not responding. Last check: 2007-10-17)
		The Model AE-500 Telephone Entry & Access Control System is designed for use as a primary access control device for gated communities, parking garages, office buildings, apartments, dormitories, hotels/motels, commercial buildings and recreational facilities with up to 250 residents or users.
		Housed in a locked, rugged stainless steel faced enclosure, the AE-500 features a side-lit 12-key telephone style keypad with bright, easy-to-read graphics, a backlit two-line directory display with a programmable welcome message, a built-in microphone, and speaker.
		The system can be programmed locally using the keypad, remotely with a touch tone telephone, or remotely using a computer equipped with a modem and a web browser.
	www.linearcorp.com /product_access.asp?product=ACP00899 (171 words)

	Telehpone Test System overview - Microtronix Systems Acoustic Telephone Test Equipment
		The Model 500 Telephone Test System represents the evolution of ideas that came from the mind of the company president and founder Mr.
		His thought was simply this: "Create a telephone test system that provides reliable, standards compliant test methods integrated into a complete package that will test all aspects of the telephone necessary for factory production.
		The Model 501 Controller is built on a Pentium Class PC Platform that includes a Microtronix Real Time Controller board Although it is faster and easier to use than the M500 Controller it remains 100% compatible with all Microtronix Test Program software.
	www.microtronix.ca /test-systems-overview.html (378 words)

	Western Electric Rotary Dial Telephone Wiring - Wiring
		Western Electric telephones made prior to the breakup of the Bell System (January 1, 1984) were designed and built to last for decades.
		Common Western Electric telephone models: Model 500 Telephone - These were the "standard" rotary dial desk sets...
		telephone intended for use by the nostalgia buff or collector who prefers the classic rotary dial...
	wiring.fbkg.com /index.php?k=western-electric-rotary-dial-telephone-wiring (965 words)

	Redefining Progress: Programs: Sustainable Economics: State Carbon Tax Model (Site not responding. Last check: 2007-10-17)
		The State Carbon Tax Model is designed to answer these and other basic questions about how a carbon tax would work in your state.
		With the appropriate state-specific data, the Model can be set up for any state in less than one hour.
		Note that the Model is not a guide for implementing a carbon tax in every state; rather, it is a revenue estimator.
	www.rprogress.org /programs/sustainableeconomy/sctm.htm (228 words)

	IDSA -- About ID
		The result of this association was the "300" tabletop telephone, with a receiver and transmitter in a "combined handset" resting in a horizontal cradle.
		In 1956 the wall-mounted telephone was re-introduced by Bell Telephone.
		Designed by Henry Dreyfuss Associates (HDA), it was intended as a companion to the desktop model "500." In 1958 Bell introduced his design for the first push-button telephone sets.
	www.idsa.org /webmodules/articles/anmviewer.asp?a=247&print=yes (1047 words)

	Linear AE-500 Telephone Entry System $695 Gate Opener
		The guiding principle behind Linear’s AE-500 is that a telephone entry system should be a model of simplicity.
		It includes a built-in radio for adding remote control via user transmitters, a function enhanced by the fact that Linear is also a leader in RF technology and offers the industry’s widest range of transmitter styles.
		No matter what size your telephone entry requirements run, it is likely that Linear can supply a system.
	gatecrafters.webdirectbrands.com /product.asp?intProdID=317&...+System (259 words)

	Western Electric Products - Telephones - Model 500 (Site not responding. Last check: 2007-10-17)
		Industrial designer Henry Dreyfuss, who had assisted Bell since the early 1930's had designed the "500" desk set which was the "basic" phone for many decades.
		Models 502, 503, 510, 511, and 558 - PDF file of BSP section C38.595.02.
		If not, check the wiring of the green and red wires of your telephone line cord to make sure they are going to "L1" and "L2" respectively and double-check the wires from the bell ringer coil to make sure they are hooked up like the schematic you printed out from the link above.
	www.bellsystemmemorial.com /telephones-500.html (648 words)

	Henry Dreyfuss: Telephones
		The model 2500 is the same basic design, but with "Touch-Tone".
		Although the 500 has been obsolete for about 50 years, it's "G" series handset is still the standard for all elevators and payphones.
		Equipped with a push-to-talk button, it is also commonly found in ambulances, fire trucks, and was used in the original radio-telephones.
	www.zebryk.com /Dreyfuss.htm (143 words)

	Western Electric Products - Telephones - Table of Contents (Site not responding. Last check: 2007-10-17)
		Model 500 Telephone - These were the "standard" rotary dial desk sets; probably the most common phone that was around in the later decades of the Bell System.
		Model 554 Telephone - This was the wall mounted version of the 500 set.
		Later model Western Electric phones had "polarity guard" circuits installed which allowed the phones to be wired in either direction.
	bellsystemmemorial.com /telephones.html (4080 words)

	Proctor automatic ringdown, line extender telephone products
		It can also be interfaced with multiline telephone systems to provide a special executive priority line with absolute privacy and independence from other lines.
		The 46220 is a stand-alone direct line telephone circuit that works independently of the public switched telephone network.
		The user simply plugs the unit into the nearest standard AC outlet, plugs in the line cords of the two telephones, and lifts the handset of one phone to automatically ring the other.
	www.proctorinc.com /46220.htm (377 words)

	Telephone History - Invention of the Telephone (Site not responding. Last check: 2007-10-17)
		The first telephone system, known as an exchange, which is a practical means of communicating between many people who have telephones, was installed in Hartford, Connecticut in 1877, and the first exchange linking two major cities was established between New York and Boston in 1883.
		The first automatic telephone exchange was patented by Almon Strowger of Kansas City in 1891 and installed in 1892, but manual switchboards remained in common use until the middle of the twentieth century.
		The telephone was the beginning of a revolution in communications and commerce.
	www.ideafinder.com /history/inventions/story078.htm (2348 words)

	Photographs and Files
		A famous New York Telephone phone book cover was scanned and sent to me from Remco Enthoven of the Netherlands.
		Sunset Telephone and Telegraph was one of the many small California telephone companies attached to Pacific States Telephone and Telegraph.
		"Telephone Troubles" shows the first two pages of a chapter on troubleshooting phones and phone networks of the 1917 era.
	www.telephonetribute.com /photos.html (714 words)

	Bold Old Phone Company - Antique Telephones
		Because they were owned by the telephone companies rather than the homeowners, these phones were built to an industrial standard and you can easily tell the difference.
		We purchased these Model 500 antique telephones from a private telephone company that took them out of service 20 years ago when they replaced them with Touch-Tone telephones and put them in the bottom of their building.
		This woman's statement was her opinion and not that of the Bold Old Telephone Company or any of its officers or employees.
	www.boldoldphones.com (429 words)

	PC Perspective / Amdmb Forums - 500 telephone
		I have found me an old 500 telephone base with nothing but the switch, bell and circuit box.
		I have been searching the Internet for about a week and have found one site that has a schematic, but the color coding on the wires is different and I cannot make any sence of which post to connect them to.
		I am hoping someone here works at the telephone company and can help me out with the wiring diagram and two which post to connect which wire to.
	forums.pcper.com /showthread.php?t=342377 (465 words)

	nick gaydos > thynk
		Henry Dreyfuss and the History of the Model 300 and 500
		Rewiring the 500 model to ring with current lines
		However, in the process to find a schematic for the Model 500 C/D, I came across a class from Professor Randy Smye at Sheridan entitled "The Design of Everyday Things." There is quite a bit of well done mainstream design education here.
	radio.weblogs.com /0110130/2003/10/13.html (407 words)

	WCDI West Coast Distribution, Inc. Phone Cards
		- Amon Strowger, the St. Louis undertaker, became upset on finding that the wife of a competitor was a telephone operator who made his line busy and transferred calls meant for him to her husband.
		I discovered in Ralph Meyer's book, Old Time Telephones, that actually, in 1879, Connelly, Connelly and McTighe patented an automatic dial system, although they did not commercialize it.
		In North Carolina, one was not permitted to place a cover on a telephone directory.
	www.wcdi.com /about_cards_2.htm (2716 words)

	Communication Certification Laboratory
		The telephone companies support "The Consumers Communications Reform Act of 1976" H.R. 12323, which was endorsed by more than 90 members of the House.
		The Telephone Consumers Protection Act, among other things, required the use of "fax branding" to identify the source of incoming faxes.
		Prior to 1984, the telephone companies took care of problems such as RFI to telephone, electro-static discharge (ESD), belltap, and lightning surge problems.
	www.cclab.com /billhist.htm (6066 words)

	Elite Roboslide Installation Detail
		Model AE-500 is a basic telephone entry system for full access control of one or two portals.
		Ideal for apartments, condominiums, dormitories, hospitals, and other commercial sites it performs all the functions of a telephone entry system - it calls the resident where the resident can grant or deny access to the development.
		250 directory codes, 500 block coded MegaCode transmitters, 500 entry codes; entry codes can be programmed for unlimited use or temporary use with up to 250 activations; all data is stored in non-volatile memory
	www.gatedepot.com /prod_linear/specs_ae-500.htm (395 words)

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