Search results
Results From The WOW.Com Content Network
A tin can phone is a type of acoustic (non-electrical) speech-transmitting device made up of two tin cans, paper cups or similarly shaped items attached to either end of a taut string or wire. It is a particular case of mechanical telephony, where sound (i.e., vibrations in the air) is converted into vibrations along a liquid or solid medium ...
Before 1960 Australian rotary dial telephones had each number's corresponding letter printed on a paper disc in the centre of the plate, with space where the subscriber could add the phone number. The paper was protected by a clear plastic disc, held in place by a form of retaining ring which also served to locate the disc radially. The ...
If Reis' phone was adjusted so the contact points made a "loose metallic contact", they would function much like the later telephone invented by Berliner or the Hughes microphone, one form of which had iron nails in loose contact. Thus the Reis phone worked best for speech when it was slightly out of adjustment.
A 220 Trimline rotary desk phone, showing the innovative rotary dial with moving fingerstop Early Touch Tone Trimline with round buttons and clear plastic backplate and round non-modular handset cord Redesigned touch-tone desk model Trimline, manufactured on January 9, 1985 The Trimline 2225, one of the last phones made at the Indianapolis Works in 1986 Early foreign made Trimline, December ...
[44] [45] Between 1971 and 1973, Bell combined MOS technology with touch-tone technology to develop a push-button MOS touch-tone phone called the "Touch-O-Matic" telephone, which could store up to 32 phone numbers. This was made possible by the low cost, low power requirements, small size and high reliability of MOSFETs, over 15,000 of which ...
For premium support please call: 800-290-4726 more ways to reach us
The onboard 5-megapixel camera won't win any awards, but it's good enough for everyday snapshots and video (though the latter tops out at 480p resolution — fine for viewing on the phone itself ...
John's Phone is a minimalist mobile phone that claims to be the world's most basic cellphone, allowing the user only to make and receive calls, with none of the features of modern smartphones such as a camera, internet access and text messaging. Phone numbers and addresses are written on a small physical paper booklet stored on the back.