1950s telephone ring amplifier
I played around with these old phones many years ago and I have a feeling it is something like 48 volts but I can't quite remember and I wonder if anybody else has done this? Lamplighter 4 posts. Ynot 4 posts. I had thought about trying something out with a sbc or arduino or something but it would get too complicated as I want the phone to stop ringing when somebody picks up the receiver, so I will stick to the manual mode.
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Amplifier Landline Phone Bell Ringer Extra Loud Telephone Ring For The Old Elder
September This site has been archived. Many of the links have been preserved but lead to old web pages that may no longer exist. Please send any problems to the Salford University webmaster. Search in: salford. General Telephones With a growing number of telephone subscribers to cater for and improvements in technology so too the telephone began to become more advanced.
The rotary dial was replaced by push buttons but these early systems still used the same technology behind the dial — so called pulse dialling. However, with the introduction of digital technology within the telephone network and the availability of solid-state integrated circuits, telephones became far more advanced machines. Here each pressing a key generates a unique combination of two frequencies and can be heard as an audible tone.
Electronics within the telephone provides for last number re-dial and the storage of commonly called numbers. It had a last number re-dial facility and an 'S' silent button which cut-off the microphone. This stone coloured version was produced in The Ambassador Telephone BT's next generation telephone concept was to produce a standard telephone for the s. It was marketed under the name Ambassador and was the first telephone design to work with the new plug and socket telephone connection.
The idea was to produce a modern equivalent of the series which could be easily adapted into a range of different versions and applications. Ambassador R This is one of the first Ambassador models produced and features a rotary dial with recall button. The side recess designed to make the telephone easy to hold and carry can be readily seen in this photograph. Viewed from this angle the recess intended to make the telephone easy to handle and pick up can be seen.
Ambassador The version of the Ambassador was designed to be used on the BT Ambassador telephone system. The Viscount Telephone The Viscount range of telephones were developed by STC as their new electronic telephone and introduced in The additional buttons provided a secrecy S button that cut-out the microphone and a MR button which provided a last number re-dial function. The button at the top of the telephone provided an on-hook amplifier.
A four number memory could be stored by pressing the MS button followed by a number and then activated by using the MR button. The N button provided a last number redial function.
This memory is retained through the use of internal batteries. The Viscount Telephone Shown here are three examples of the Viscount telephone. On the left is the basic model with the 10 digit numeric keypad. In the middle is a model with the added secrecy and last number re-dial buttons.
Finally, on the right is model with the full 15 key keypad. It was a simplified version of the Ambassador and became one of the most successful customer telephones of the s. Statesman versions Shown here are three examples of the Statesman telephone in brown. On the left is a model with its basic numeric keypad; in the middle is model R which provides the additional Recall button; and finally on the right is model R which has the additional star and hash keys.
Statesman This is the most basic version of the Statesman with no additional features other than a standard ten digital keypad. Statesman R This brown version of the Statesman is model R fitted with the additional star and hash keys. Statesman R This cream version of the Statesman is a model which included a recall button for use on private exchanges.
Statesman R This maroon version of the Statesman is a model R which included a recall button for use on private exchanges. It was manufactured for BT by A. Although the keypad is arranged in the form of a dial, it actually a push button telephone with last number re-dial and had electronic tone ringer, not a bell.
Its compact design featured a push button keypad and a traditional bell ringer or tone caller. It was offered in three main ranges 94xx, 98xx and 99xx.
They were also fitted with an adjustable bell. It provided a last number re-dial and secrecy button. It provides secrecy and last number re-dial plus private exchange functions such as recall. The React range was introduced in It was introduced in The Vanguard Telephone The Vanguard model was introduced in the early s as the main customer rental telephone.
They provided last number re-dial and secrecy functions and could be switched between pulse or touch tone dialling. This is compatible with behind-the-ear hearing aids when these are switched to the 'T' position.
The Relate provided the added feature of a pen tray on the right hand side of the case. BT Relate The Relate was introduced in This model provided the additional features of full hands-free operation, 20 quick dial keys, and an LCD panel with clock and call timer. It promised callers the chance to see, and be seen by, the person they were talking to.
It features a flip-up screen on the right, where the video played. The colour Liquid Crystal Display is a 2. If the picture is unclear due to line noise or other interference, the rate may be slowed to frames per second. Unfortunately picture quality generally proved to be poor and the videophone was not popular. This Converse model was introduced in It features a recall button which allows incoming calls to be transferred to another user via a company's private telephone exchange.
BT Converse The Converse range of telephones were introduced for this business market. This red Converse model was introduced in BT Converse Launched in the Converse was intended to replace the Relate and Vanguard ranges with the Converse being intended for business use.
Introduced in it features an illuminated incoming call indicator, recall, redial and secrecy functions. Converse The Converse was launched in and is a basic telephone with call indicator light and ringer volume control. It has the added benefit of a data port for the direct connection of a modem.
BT Converse Push Button Telephone Introduced in , the BT Converse is a desk telephone with hands-free operation, and the provision of ports for an external headset and data connection. It can store 10 numbers accessed via the individual buttons on the right hand side of the unit. This memory is able to retain its contents for 3 minutes without power. It also has recall, redial and secrecy buttons, a ring indicator and volume controls.
This is a Decor in yellow which was released in It featured a 13 number memory, a LCD to show the number dialled, re-dial and batteries which allowed the number memory to be retained for 4 hours when unplugged from the telephone network. Decor The Decor was released in It features an extended LCD that displays the time and date, the number being dialled including the name of the person if you have entered this into the memory, a voice message alert icon, battery status and the number of an incoming call if the user has subscribed to BT's Caller Display service.
It includes re-dial, and hands free operation with separate volume control. A total of 30 numbers together with names can be stored in the memory and organised within directory groups, each of which can be differentiated by a different ringer tone. In addition it provides an alarm clock function and automatically records the time and duration of all calls. It can store up to 13 numbers accessed through 3 one-touch memory buttons and the remaining 10 accessed using a memory button and numeric keypad.
It has a last number re-dial and a "" button that flashes if a voicemail has been received on the BT service. It requires four AA batteries for power.
The Eiger became available in and this version is the type A in stone coloured textured finish. This is one of the first Ambassador models produced and features a rotary dial with recall button. The version of the Ambassador was designed to be used on the BT Ambassador telephone system. This is an early version of the Viscount - identifiable by the 10 number keypad without any extra buttons.
A later model of the Viscount featuring a 12 number keypad. Another example of the R, 12 number keypad Viscount; this time in red. This example of the R in beige is also supplied with a wall mounting bracket. Another example of the R, 12 number keypad Viscount, this time in green. This is a Viscount Super 4 Telephone which offered additional features. Shown here are three examples of the Viscount telephone. The Digitel , 'Kirk' telephone was designed and manufactured by Horsens of Denmark.
It provided a hands-free operation mode with a microphone and loudspeaker located within the telephone case. A volume control is located on the back of the handset. It became available in the UK in the early s. The first keypad versions of the Trimphone became available in the late s.
The additional electronics necessitated increasing the height of the body over the rotary dial version. Shown here are three examples of the Statesman telephone in brown. This is the most basic version of the Statesman with no additional features other than a standard ten digital keypad.
This brown version of the Statesman is model R fitted with the additional star and hash keys. This cream version of the Statesman is a model which included a recall button for use on private exchanges. This maroon version of the Statesman is a model R which included a recall button for use on private exchanges. This grey version of the Statesman is a model R which is a basic model with the added feature of a last number re-dial LR.
Robot or human?
Ringing is a telecommunication signal that causes a bell or other device to alert a telephone subscriber to an incoming telephone call. Historically, this entailed sending a high-voltage alternating current over the telephone line to a customer station which contained an electromagnetic bell. It is therefore also commonly referred to as power ringing , to distinguish it from another signal, audible ringing, or ringing tone , which is sent to the originating caller to indicate that the destination telephone is in fact ringing. When the switching system directs a call to a particular subscriber line, a relay on the line card connects the ringing generator to the subscriber line. The exchange also sends a ringing tone to the calling party. When the called party answers by taking the telephone handset off the switchhook , the subscriber's telephone draws direct current from the central office battery. This current is sensed by the line card and the ringing relay is de-energized.
General Telephones
Western Electric- Telephones. Western Electric Telephones. Western Electric telephones made prior to the breakup of the Bell System January 1, were designed and built to last for decades. If a Western Electric phone ever quit working your local Bell Operating company would send out the "telephone man" to your house and fix it for free. Those days of quality built telephones and free visits to your home by a telephone repair person are gone - replaced by cheap throw-away phones from Taiwan and China. This web page is your starting point for technical information, photos, FAQ's, posters, charts, etc. Bell Phone Center employee tossing returned Western Electric phones that will end up at the Western Electric Recycling Depot to be either refurbished or scrapped. Common Western Electric telephone models: Model 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 Telephone - This was the wall mounted version of the set. It had the same rotary dial, ringer, handset and network as the set.
BIG BUTTON TELEPHONE + RING AMPLIFIER & LIGHT OPTION
Throughout history, people have devised methods for communicating over long distances. The earliest methods involved crude systems such as drum beating or smoke signaling. These systems evolved into optical telegraphy, and by the early s, electric telegraphy. The first simple telephones, which were comprised of a long string and two cans, were known in the early eighteenth century.
With Non-slip Base Vintage Telephone Landline Phone Retro for Home for Office
September This site has been archived. Many of the links have been preserved but lead to old web pages that may no longer exist. Please send any problems to the Salford University webmaster. Search in: salford. General Telephones With a growing number of telephone subscribers to cater for and improvements in technology so too the telephone began to become more advanced.
landline phone
At an antique telephone show, I ran across a collector with a tester clipped to his belt. I asked him what he had. He said it was a telephone ringer that was powered by 4 four AA cells. It produced a Hz square wave of sufficient voltage to power a ringer. I am curious as to what he may have in that little black box. Lots of designs can do that, including a very simple DC-to-AC inverter with a step-up output transformer.
We are not able to respond back to you, so if the ad remains on site after 12 hours then we have chosen to leave the ad live. If you are a victim of fraud click here. Ad ID: Dialatron Big Button 10 corded telephone.
BT 4- Tone loud Indoor Telephone Ringer - this Tone Caller with its loud sound makes it easier to know when your phone is ringing - it provides an extra audible alert if you are having problems hearing your telephone ring. It has 4 different pitch settings and a volume control. To use it, plug this additional bell into a spare telephone socket or use a socket adaptor supplied to plug it in beside your existing phone. British telecom telephone ringer. Brand new in pack..
Support single line operation, easy to use, bringing better using experience. Traditional bell ring takes you to vintage time, cute and exquisite appearance. Designed with non-slip base, no need to worry about falling off, reliable to use. Long service life, not easy to damage, and you can use for a long time. Joom online store offers high-quality products at low prices. Do you want it to be even more affordable? Follow our discounts and special offers!
On offer is the activation and adjustment for maximum output level of the ring buzzer of your existing Ericofon vintage Telephone handset. All Ericofon handsets This telephone ring detector kit is an external sounder for your phone line that will sound the onboard buzzer and flash the LED when the phone rings. You don't need electricity for this shocking surprise prank.
It really makes me happy.
Amazing topic, they are very interesting))))