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searching for Carbon microphone 14 found (52 total)

Eric Tigerstedt (2,274 words) [view diff] exact match in snippet view article find links to article

he described as a "pocket-size folding telephone with a very thin carbon microphone". Tigerstedt was awarded a total of 71 patents in several countries

Telephone magneto (557 words) [view diff] exact match in snippet view article find links to article

The telephone instrument obtained talking current by powering a carbon microphone with a local battery, consisting of "N° 6" zinc–carbon dry cells.

John Kruesi (437 words) [view diff] exact match in snippet view article find links to article

Edison's key inventions. Including the quadruplex telegraph, the carbon microphone, phonograph, incandescent light bulb and system of electric lighting

Shure (5,803 words) [view diff] case mismatch in snippet view article find links to article

Shure microphone, and the following year, the Model 33N Two-Button Carbon Microphone was introduced, making Shure one of only four microphone manufacturers

Shure 55SH (989 words) [view diff] exact match in snippet view article find links to article

first microphone, and the following year the Model 33N two-button carbon microphone was introduced, making Shure one of only four microphone manufacturers

Photophone (4,157 words) [view diff] exact match in snippet view article find links to article

lit, lower when brightly lit. The selenium cell took the place of a carbon microphone—also a variable-resistance device—in the circuit of what was otherwise

Triode (3,670 words) [view diff] exact match in snippet view article find links to article

Telephone Relay (using a magnetic "earphone" mechanism driving a carbon microphone element) was able to give power amplification and had been in use

History of mobile phones (7,338 words) [view diff] exact match in snippet view article find links to article

filed a patent for a "pocket-size folding telephone with a very thin carbon microphone". Beginning in 1918, the German railroad system tested wireless telephony

Mobile phone (9,032 words) [view diff] exact match in snippet view article find links to article

filed a patent for a "pocket-size folding telephone with a very thin carbon microphone". Early predecessors of cellular phones included analog radio communications

Tetrode (4,294 words) [view diff] exact match in snippet view article find links to article

amplitude, is modulated by the voltage on G1, which is derived from a carbon microphone. A tube of this type could also be used as a direct conversion CW

Electronic oscillator (6,588 words) [view diff] exact match in snippet view article find links to article

case cf p. 45. Telephone hummer/oscillator by A. S. Hibbard in 1890 (carbon microphone has power gain); Larsen "used the same principle in the production

The Boswell Sisters (5,579 words) [view diff] exact match in snippet view article find links to article

somewhat by accident. Normally the sisters would sing into a large carbon microphone from a distance of about three feet, but on one particular day there

Timeline of radio (4,696 words) [view diff] exact match in snippet view article find links to article

England. Early radios ran the entire power of the transmitter through a carbon microphone. 23 November 1923: 2SB was the first Australian station to be officially

List of English inventions and discoveries (16,528 words) [view diff] exact match in snippet view article find links to article

The theatre organ developed by Robert Hope-Jones (1859–1914). 1870: Carbon microphone, invented by David Edward Hughes. 1968: The logical bassoon, an electronically