- The
carbon microphone, also
known as
carbon button microphone,
button microphone, or
carbon transmitter, is a type of microphone, a
transducer that converts...
- ISSN 0262-4079. IEEE
Global History Network:
Carbon Transmitter. New Brunswick, NJ: IEEE
History Center "
Carbon Transmitter".
Archived from the
original on March...
- (graphite
transmitter) –
Thomas Edison US 203,016 –
Speaking Telephone (
carbon button transmitter) –
Thomas Edison US 222,390 –
Carbon Telephone (
carbon granules...
-
Edison US 222390
Carbon Telephone (
carbon granules transmitter) by
Thomas Edison US 485311
Telephone (solid back
carbon transmitter) by
Anthony C. White...
-
Company is near
bankruptcy and
desperate to get a
transmitter to
equal Edison's
carbon transmitter. 17
February 1879: Bell
Telephone merges with the New...
- a call bell. 27
April 1877:
Edison files for a
patent on a
carbon (graphite)
transmitter.
Patent No. 474,230 is
granted on 3 May 1892,
after a 15-year...
-
apparatus would fit
behind or in the ear. The
invention of the
carbon microphone,
transmitters,
digital signal processing chip or DSP, and the development...
- industries.
Thomas Edison refined the
carbon microphone into his
carbon-button
transmitter of 1886. This
microphone was emplo**** at the
first radio broadcast...
- spark-gap
transmitter is an
obsolete type of
radio transmitter which generates radio waves by
means of an
electric spark. Spark-gap
transmitters were the...
- load is required, such as in
testing automotive batteries or
radio transmitters. A
carbon pile
resistor can also be used as a
speed control for
small motors...
