PMG Bakelite telephone Workshop repair manuals

PMG Bakelite telephone

Dr. The Bakelite company was formed in 1922 from a merger of three businesses: the overall Bakelite business, which Baekeland established in 1910, the Condensite business, created by J. Bakelite restricted, a merger of three British phenol formaldehyde resin vendors is formed

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Replica Vintage Bakelite King Pyramid model 162 Telephone 1930s This is a modern replica of the The King Pyramid designed phone that was introduced in 1929. It was supplied by the PMG in Australia in the 1930s. This reproduction retro phone is made with modern plastics (no Bakelite) and has all the modern features while still keeping the 1920s design. You can turn the ringer on and off. You can turn the receiver volume high and low. You have last number redial and call hold. This Telephone dials tone and decadic it has a switch so you can switch it between pulse/decadic and DTMF. This means you can use this retro reproduction rotary dial phone for voicemail/call centres etc. This phone is brand new. The replica pyramid telephone comes with a RJ11 phone cable that fits RJ12 sockets like these. If you have old Telecom/PMG 610 sockets you may need an 610 adaptor here. or other adaptors here you may need an ADSL filter information on ADSL with retro phones here Replica Vintage Bakelite King Pyramid model 162 Telephone 1930s - Black colour click to go

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Replica Chrome Vintage Bakelite King Pyramid model 162 Telephone 1930s This is a modern replica of the The King Pyramid phone that was introduced in 1929. It was supplied by the PMG in Australia in the 1930s. This Chrome reproduction retro phone has all the modern features while still keeping the 1920s design. You can turn the ringer on and off. You can turn the receiver volume high and low. You have last number redial and call hold. This Telephone dials tone and decadic it has a switch so you can switch it between pulse/decadic and DTMF. This means you can use this retro reproduction rotary dial phone for voicemail/call centres etc. This phone is brand new. The replica pyramid telephone comes with a RJ11 phone cable that fits RJ12 sockets like these. If you have old Telecom/PMG 610 sockets you may need an 610 adaptor here. or other adaptors here you may need an ADSL filter information on ADSL with retro phones here Replica Vintage Bakelite King Pyramid model 162 Telephone 1930s - Chrome colour much more info

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Replica Chrome Vintage Bakelite Candlestick model 38AT Telephone 1920s This is a modern replica of the Candlestick phone Type 38 that was introduced in 1912. It was commonly supplied by the PMG in Australia in the 1920s. This reproduction retro phone has all the modern features while still keeping the 1912 design. You can turn the ringer on and off. You can turn the receiver volume high and low. You have last number redial and call hold. The phone has cloth covered cords like the original Candlestick phone. The phone is heavy emulating the original candlestick telephone introduced by the PMG (Post Master Generals Department) This Telephone dials tone and decadic it has a switch so you can switch it between pulse/decadic and DTMF. This means you can use this retro reproduction rotary dial phone for voicemail/call centres etc. This phone is brand new. The replica candlestick telephone comes with a RJ11 phone cable that fits RJ12 sockets like these. If you have old Telecom/PMG 610 sockets y related info

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Vintage Black Bakelite PMG 300 AWH Wallphone Telephone 1952 The last of the bakelite phones introduced in the 1950s. The Wallphones are very rare. The phone is very heavy weighing 2.3 kg. This is a rare vintage phone. It has been cleaned and refurbished and is good mechanical order. It has some small surface scratching as would be expected on a restored 50 year old phone. The bells ring lound and clear and transmission is good. Note this has a plate at the rear of the phone that needs to be unscrewed and mounted through onto the wall. Dials decadic it will not dial DTMF tones that you use for voicemail/call centres etc. However it dials telephone numbers fine information on decadic here. The bakelite black telephone comes with with a RJ11 phone cable that fits RJ12 sockets like these. If you have old Telecom/PMG 610 sock come here

Tags: http://www.vintagephones.com.au/ccp0-prodshow/pmg-400-series-telephone-vintage.html

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Vintage Black Bakelite PMG 400 AT Telephone 1950s The last of the bakelite phones introduced in the 1950s. They were available in black or ivory. The phone is very heavy weighing 2.3 kg. This is a rare vintage phone. It has been cleaned and refurbished and is good mechanical order. It has some imperfections as would be expected on a 50 year old phone however it is in very good condition. The bells ring lound and clear and transmission is good. It is good example of a working 50+ year old telephone. Dials decadic it will not dial DTMF tones that you use for voicemail/call centres etc. However it dials telephone numbers fine information on decadic here. The bakelite black telephone comes with comes with a RJ11 phone cable that fits RJ12 sockets like these. You may need an adaptor here or other adaptors here you may need an ADSL filter information on ADSL with retro phones here. Vintage Black Bakelite PMG 400 AT Telephone 1950s find out more.....

Tags: series Rare PMG refurbished

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Rare Vintage Black Bakelite PMG 300 AT Telephone 1940s The last of the bakelite phones introduced in the 1939. They were available in black or ivory. The phone is very heavy weighing 2.3 kg. This is a rare vintage phone a 332AT PMG Bakelite. It has been cleaned and refurbished and is good mechanical order. It has a chromed "Staybrite" dial. It has some minor imperfections as would be expected on a 50 year old phone however it is in very good condition. The bells ring lound and clear and transmission is good. It is good example of a working rotary dial 70 year old telephone. Dials decadic it will not dial DTMF tones that you use for voicemail/call centres etc. However it dials telephone numbers fine information on decadic here. The bakelite black telephone comes with a standard telecom 605 plug however it can be removed has an RJ11 cable that extra

Tags: refurbished Tele Pyramid Vintage s

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Vintage Bakelite Pyramid model 232 Telephone refurbished 1930s The PMG Pyramid phone was introduced in 1929. This phone has a bellset fitted in the base. It was made in the 1930s for the Post Master Generals Department (the P.M.G.). It has a cloth covered cord. The phone is very heavy weighing 3.5 kg. This is a rare vintage phone. It has been cleaned and refurbished and is good mechanical order.The bells ring lound and clear and transmission is good. It is good example of a working 80+ year old telephone. Dials decadic it will not dial DTMF tones that you use for voicemail/call centres etc. However it dials telephone numbers fine information on decadic here. The bakelite black telephone comes with with a RJ11 phone cable that fits RJ12 sockets like these. You may need an ADSL filter information on ADSL with retro phones here) You can get a modern replica of this Pyramid phon details

Tags: Vintage

. 1980s .
. repair .
Replica Vintage Bakelite Candlestick model 38AT Telephone 1920s This is a modern replica of the Candlestick phone that was introduced in 1912. It was commonly supplied by the PMG in Australia in the 1920s. This reproduction retro phone has all the modern features while still keeping the 1912 design. You can turn the ringer on and off. You can turn the receiver volume high and low. You have last number redial and call hold. The phone has cloth covered cords like the original Candlestick phone. The phone is heavy emulating the original candlestick telephone introduced by the PMG (Post Master Generals Department) This Telephone dials tone and decadic it has a switch so you can switch it between pulse/decadic and DTMF. This means you can use this retro reproduction rotary dial phone for voicemail/call centres etc. This phone is brand new. The replica pyramid telephone comes with a RJ11 phone cable that fits RJ12 sockets like these. If you have old Telecom/PMG 610 sockets you may need an 610 adaptor here. or other adaptors here you may need an ADSL filter information on ADSL with retro phones here Replica Vintage Bakelite Candlestick model 38AT Teleph full details

Dr. Baekeland have initially set out to find an alternative for shellac, created from the removal of lac pests. Chemists have begun to observe that many natural resins and fibres were polymers, and Baekeland investigated the responses of phenol and formaldehyde. He very first produced a soluble phenol-formaldehyde shellac called "Novolak" that never ever became market triumph, then turned to building a binder for asbestos which, in those days, is molded with rubberized. By managing the stress and temperatures placed on phenol and formaldehyde, he produced a difficult moldable information and branded in 1907 called Bakelite. It was 1st artificial thermosetting synthetic available. It had been often referred to as "the material of 1000 utilizes," a phrase originated by Baekeland himself. He revealed the invention at a meeting of the United states Chemical people on February 5, 1909.

The Bakelite company was formed in 1922 from a merger of three businesses: the overall Bakelite business, which Baekeland established in 1910, the Condensite business, created by J.W. Aylesworth, and the Redmanol substance Products providers, founded by L.V. Redman. A factory is built near certain Brook, nj, in 1929.

Bakelite restricted, a merger of three British phenol formaldehyde resin vendors is formed in 1926. A factory exposed in Tyseley, Birmingham, The united kingdomt around 1928. It absolutely was demolished in 1998.

In 1939 the companies were acquired by Union Carbide and Carbon organization. Union Carbide's phenolic resin company like the Bakelite and Bakelit signed up trademarks were had by Momentive Specialty chemical substances.
Phenolics are far more hardly ever used in basic customer products today, because of the expense and difficulty of production and their particular brittle nature. However they've been nonetheless utilized in some solutions in which their certain characteristics are needed, such as for example small precision-shaped equipment, shaped disc brake cylinders, saucepan manages, electric plugs and switches and section for electric irons. These days, Bakelite is produced and stated in piece, pole and tube form for hundreds of industrial solutions when you look at the electronics, energy generation and aerospace industries, and under many different commercial manufacturers.
Bakelite distributor rotor
Bakelite letter opener circa 1920

Phenolic piece try a tough, heavy materials created by applying heat and stress to levels of papers or glass cloth impregnated with synthetic resin. These levels of laminations are often of cellulose papers, cotton textiles, synthetic yarn fabric, glass fabric or unwoven fabrics. Whenever temperatures and force become applied to the layers, a chemical effect changes the layers into a high-pressure thermosetting professional laminated plastic. Whenever rubbed or burnt, Bakelite possess an exceptional, acrid, sickly-sweet fishy smell.
A rotary switch try an element of a telephone or a telephone switchboard that executes a signaling technologies in telecommunications referred to as pulse dialing. It really is put when starting a telephone telephone call to transmit the destination telephone number to a telephone trade.

Regarding rotary dial, the digits become arranged in a circular layout so that a little finger wheel can be turned with one finger from position of each and every digit to a set stop position, applied by the finger end, which can be a mechanical buffer to stop additional rotation. Whenever circulated at hand stop, the wheel returns to its home position by spring activity at a speed managed by a governor unit. During this return rotation, the dial interrupts the direct electric present associated with phone line a particular wide range of instances for every digit and therefore creates electrical pulses which the phone change decodes into each dialed digit. Each one of the ten digits tend to be encoded in sequences as high as ten pulses. This is exactly why, the technique is sometimes called decadic dialling.

Initial patent for a rotary switch is submitted by Almon Brown Strowger on December 21, 1891, that has been awarded to him on November 29, 1892 as U.S. Patent 486,909. The early types of a rotary dial made use of lugs on a little finger plate in the place of holes as well as the pulse train ended up being generated without having the control over springtime action or a governor on the forward action of the wheel, which proved to be hard to work properly. The commonly recognized appearance regarding the rotary switch with finger holes was initially launched in 1904 but did not submit solution in Bell System in the us until 1919, when AT&T abandoned its determined reliance on manual exchanges, and accepted automated switching.

From the 1960s onward, the rotary dial is slowly supplanted by dual-tone multi-frequency push-button dialing, first launched to your people in the 1962 planet's Fair beneath the trade name "Touch-Tone". Touch-tone technologies mostly utilized a keypad in as a type of a rectangular selection of push-buttons for dialing.
Automated exchanges, or dial service, has been around since in the early 1900s. Their function would be to eradicate the significance of person switchboard providers which finished the contacts required for a telephone call. Automation replaced peoples operators with electromechanical methods and telephones had been loaded with a dial where a caller sent the destination cell phone number towards the automated switching program.

a phone trade immediately senses an off-hook problem for the telephone whenever individual removes the handset from the switchhook or cradle. The exchange produces dial tone in those days to point towards the individual that the change is able to obtain dialed digits. The pulses or DTMF tones produced because of the telephone become refined and a connection is set up toward destination telephone in the exact same trade or even to another remote exchange.

The change keeps the text until one of many events hangs up. This track of connections standing is known as direction. Additional properties, such as payment equipment, are often integrated in to the trade.

The Bell program dial services implemented an attribute known as automatic number recognition which facilitated providers like automated payment, toll free 800-numbers, and 9-1-1 service. In handbook service, the operator knows where a call are originating by the light regarding switchboard jack industry. Before ANI, cross country phone calls were put into an operator waiting line therefore the operator expected the phoning celebration's amounts and taped it on a paper cost ticket.

Early exchanges had been electromechanical techniques utilizing engines, shaft drives, rotating switches and relays. Some forms of automated exchanges are the Strowger switch or step-by-step turn, All Relay, X-Y, panel turn while the crossbar change.
A rotary dial typically features a circular construction. The shaft that actuates the mechanical flipping method are driven because of the hand wheel, a disk that features ten finger holes aligned near to the circumference. the little finger wheel might be transparent or opaque permitting the viewing regarding the face dish, or number plate below, either in entire, or only showing the quantity assignment for every single little finger opening. The faceplate is imprinted with figures, and quite often letters, matching to every hand hole. The 1 is normally set at around 60 degrees clockwise from uppermost aim of the dial, or around within 2 o'clock place, and the figures progress counterclockwise, utilizing the 0 staying at about 5 o'clock. A curved device known as a finger stop sits over the dial at around the 4 o'clock place. The actual nature of this dialing mechanism on rotary mobile phones permitted employing physical locking components to stop unauthorized usage. The lock could possibly be vital to the phone itself or an independent unit inserted through finger hole nearest the finger end to avoid the dial rotating.
All-figure dialling was a phone numbering arrange introduced in the United Kingdom starting in 1966 that replaced the traditional system of using preliminary letters of phone change brands once the very first part of a phone number. The alteration mainly impacted subscriber data in towns and cities of Birmingham, Edinburgh, Glasgow, Liverpool, London and Manchester.

The change to all-figure dialling happened between 1966 and 1970 and had been initiated because of the General Post Office. It was one of the first in a series of changes in the organisation of Uk phone figures. In many areas the alteration initially only impacted the presentation of location rules, in six multiple change director places including the London phone region, the alteration required the introduction of new regional exchange rules. The period of synchronous procedure associated with older and new techniques concluded in 1970 with the ANN: All-figure figures today marketing campaign. The changes were required for the continued good operation of phone services, but were considered controversial at that time. They occurred because of the increase in subscriber-dialled international telephone calls from nations that used another mapping of letters to data regarding rotary dial and since the few helpful trade mnemonics which were feasible beneath the current system was being exhausted. The implementation of all-figure dialling and newer regional change codes in director areas allowed modifications become made to routing of telephone calls into and out of these areas.
The 200 series is introduced in 1934 and had been available for time alongside the earlier 100 show, which many individuals chosen. They stayed in production until 1957, when it was replaced because of the 300 series. The Tele. 232 device Micro Telephone, had been the first UNITED KINGDOM phone to incorporate the transmitter and receiver into a single unit, 'The Handset'. Originally established because the final of this 100 series, the tele. 162, as soon as their potential is realised it had been quickly promoted to a Type Number all a unique. It absolutely was designed as a tremendously lightweight domestic phone, which could feel transported around whilst being used, by hooking the fingertips in switch-hook cradle. For this purpose maybe it's bought with an extra longer instrument cord at additional expense. It was also less heavy in CB kind, with a blanking dish rather than the dial. Such as the Tele. 150, it was an empty shell, which came without having any electrics or bells, that has been standard at that time, as an independent bell ready ended up being offered. This might be either screwed directly in phone or installed independently in another place. The Tele. 232 arrived associated with the field fitted with a base plate containing a drawer, keeping your own directory site card. This base dish was usually removed and discarded. The telephone could after that become screwed straight on the coordinating Bell set 26, making a true, but really hefty, telephone set, or screwed down onto the table of a CCB, in a Public Telephone Kiosk. Inside form, with a dial which could never be unscrewed from the front side and an even more durable device cord, it absolutely was re-numbered whilst the Tele. 242. There was an added variation. With modified internals and created solely to be used in conjunction with a Bellset 39a or 44, this was the Tele. 248 inside guise for the expansion methods 5 & 7. This particular telephone is frequently showcased in British made duration tv dramas. Curiously, the telephone usually rings despite not being installed with any bell product.
The 300 series equipments were introduced in 1937. The Tele. 332 ASTIC, device Micro phone, once more available as either L or CB, was the conventional phone instrument released by the GPO from 1937 until 1959, although 242Ls always been provided for pay-on-answer kiosks. Really it was a redesign of the 232/bellset 26 combination. The definition of ASTIC indicates the employment of an anti-sidetone induction coil, to allow only a small, controlled quantity of address sign back again to the talker's ear to give you necessary sidetone for a normal interaction enjoy. They continued in production through to the mid-1960s. It was frequently best for sale in black colored although ivory, purple and, the specifically rare, green were also produced. Although 332 could be the generic because of this model, by dint of superior data, there were four more brands into the number. The shiny, sharp fashioned 332 gestated from much poorer quality 330. Though comparable, the product quality and finish of this 330s moulding had been bad, in contrast. After that there were the option phones. A 332 using premises for just one switch was a 312, two buttons a 328 and three buttons a 314. As a result, inside pictures below the tool in the remaining is, strictly speaking, a 314 and also the one on the appropriate a 312, although their complete potential is not becoming used. The Tele. 332L revealed regarding the remaining try a bedside extension from an Extension Arrange 1A. Note the improvement associated with BELL ON - BELL OFF drive buttons, forward associated with switchook cradle. The center switch place was filled with a blanking stud and only a 2 method label are installed. The tool regarding right try a Tele 312, but has its single-button gap fitted with a blanking stud. The label screws were sitting redundant in their holes.
The candlestick phone are a mode of phone which was common from the belated 1890s to your 1940s. A candlestick phone can also be often referred to as a desk stay, an upright, or a stick phone. Candlestick telephones showcased a mouth section mounted near the top of the stay, and a receiver that was presented because of the individual toward ear during a call. Whenever telephone was not in use, the receiver rested in hand for the switch connect protruding aside of the stay, therefore disconnecting the audio circuit from the phone system.
The carbon microphone, also referred to as carbon button microphone, option microphone, or carbon transmitter, is a type of microphone, a transducer that converts noise to an electric audio sign. It is composed of two metal plates separated by granules of carbon. One dish is very slim and faces outward, acting as a diaphragm. When sound surf strike this dish, the stress regarding the granules modifications, which in turn changes the electrical opposition between the dishes. Higher stress reduces the opposition as granules are pressed closer together. As a steady direct-current are passed between the dishes, the varying resistance results in a modulation of this latest on exact same regularity for the impinging noise waves. In telephony, this sign is straight passed through a telephone system towards main company, or its electronically amplified various other noise methods, particularly a public target program or a recording product. The regularity response associated with carbon microphone, but is restricted to a narrow range, plus the device brings significant electrical noise.

Before the growth of vacuum-tube amplifiers in 1920s, carbon microphones had been the only useful means of acquiring high-level audio indicators, and had been widely used in telephone methods. Their inexpensive, naturally highest output and peaked frequency response attribute were well suited for this application. Their used in new telephone installations continuing to the 1980s, even after that they had already been changed by other types of microphones in other applications. In many the usual phone solution companies, carbon-microphone depending telephones can still be used without adjustment. Carbon microphones, frequently customized telephone transmitters, were widely used at the beginning of AM radio broadcasting techniques, however their restricted regularity response, including a rather higher sounds level, led to their particular abandonment in those solutions because of the late 1920s. They continued to be trusted for low-end public address, and armed forces and amateur broadcast applications for a few years afterward.
When west Electrical had sufficiently developed contemporary handset build in 1920s, the west Electrical candlesticks are superseded by a series of brand-new desktop computer designs, beginning with the A1 mount in the mid 1920s. This is really a candlestick telephone which had their straight tube-shaft reduced to over 1.5 in high above the circular base, along with a cradle together with it, built to hold a combined handset with both the receiver additionally the transmitter in identical product. The cradle included a plunger that run the hookswitch in base below. The A1 was only distributed for a tremendously short period of time before B-type telephone mount had been finished in 1927, a streamlined build that changed the tube-shaft with a sculpted cone shape. By 1930 this round base was redesigned into the oval-footprint D-mounting in order to avoid uncertainty of product whenever dialing. In addition the electric circuitry had been enhanced to make the design 202 phone, which decreased the powerful sidetone characteristic of early in the day design.
Another desk telephone developed the Bell program following the west Electric No. 10 is the initial tube shaft candlestick desk phone. Patented in 1904, the Western Electric No. 20 series arrived to widespread service. The No. 20B, which is today often referred to as the 1904 candlestick, is described as a great perch using transmitter unit attached to it with a bolt and a 1 1/8 inches diameter knurled "thumb-wheel" nut.

The earliest manufacturing mobile phones for this series made use of the wood base dishes associated with the No. 10 devices of mounted on a "pot material" stem bolt by two screws. Later manufacturing devices and subsequent refurbished phones have cloth covered metal protects and three screws were used, the middle screw holding the stem positioned. In previous versions, the stem was protected by an individual screw located on the tubal shaft about an inch from the surface of the base in the right hand side of the mobile.

The 20B phone had just a single line connecting through the inner connections toward transmitter. This line ended up being routed externally from transmitter through an insulated gap when you look at the transmitter back glass. The line then re-entered the device through a centered hole when you look at the top of the solid perch causing the spring associates. Another electrode associated with the transmitter was at connection with the metal of phone which served whilst the 2nd conductor.

The old-style No. 122 external-terminal receiver and a No. 229 solid-back transmitter

The Western Electrical quantity 302 show table phone was launched in 1937. Initial models have a die-cast zinc housing and were altered during War to a thermo-plastic housing. The F-1 show devices had been first made of bakelite and later altered on much less heavy thermo-plastic. The 302 show was initial Bell program subscriber table telephone to support the ringer and induction coil inside the mobile. Past work desk brands needed an independent customer set or bell field that has been connected by the line cord.

Although the 302 show phone was predominately present black colored, it was in addition manufactured in nine colors. The Western Electric quantity 10 catalog listings here colors: black colored; ivory; older metal; statuary bronze; oxidized silver, dark silver; old-rose; dark-blue; gray-green; pekin red. In the colored sets, a 5-J dial ended up being made use of in place of a 5-H. The 5-J had a stainless steel hand end and amount card owner in addition to circumstances are done in white instead of black. Almost all of the colored units included cloth-covered cords which corresponded to the color of the device.

Once the thermo-plastic housings became the standard, the colors had been molded into the vinyl of this color without coated on because had been the outcome for the die-cast mobile phones.

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telephone parts - Frill Free Phones

If you are repairing or restoring a phone or phone system, and don't have all the pieces you need, we can help. We have a large inventory of reasonably-priced parts ...

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Bakélite — Wikipédia

Voir aussi Bibliographie. en) Bijker, Wiebe E. ; The social construction of bakelite: Toward a theory of invention. In The social construction of technological ...

Telstra launches the next generation of home <b>phone</b> calling with <b>...</b>

Telstra customers on ADSL and NBN services can now download the free T-Voice app on their compatible tablets and devices and make and receive calls in the home at home phone rates giving them greater choice, convenience and value. ... Bakelite (an early plastic) was easily moulded and this resulted in streamlined shapes that cradled the receiver on top of the phone's casing when not in use. • In 1962 the PMG introduced the 800 Series Automatic Color Fone.