coherer

The further developments from these experiments led to the coherer.

In 1894 he built the first radio receiver, which contained a coherer.

The coherer was the first widely used detector for radio communication.

He had moved to another instrument, next to the coherer, and noted down two or three readings from it.

The coherer, however, was not sensitive enough to be used reliably as radio developed.

There are several variations of what is known as the imperfect junction coherer.

This form of coherer is self-restoring and needs no decohering.

These devices had an innovative coherer and a series of electronic logic gates.

This was a problem because the coherer had to be ready immediately to receive the next "dot" or "dash".

The coherer used with this system consists of a tube in which are contained the filings.

Consequently, the coherer cannot be relied upon as a calling-up apparatus.

The coherer was the most successful of many detector devices that were tried in the early days of radio.

The radio signal from the antenna was applied directly across the coherer's electrodes.

Bose planned to "perfect his coherer" but never thought of patenting it.

It consisted of a tube filled with iron filings, called a "coherer".

In operation, the coherer is included in two separate electrical circuits.

"The storm will arrive after seven this evening, in fact, let us examine my coherer, from which we can ascertain the exact time."

Unfortunately, the reduction in the coherer's electrical resistance persisted after the radio signal was removed.

At first a Branley Coherer was used to indicate the presence of a radio signal.

When the radio signal from a "dot" or "dash" came, the coherer would become conductive.

Above the ball is the pole-piece of a magnet controlled by the relay in the coherer circuit.

It replaced electrolytic, magnetic, and particularly coherer detectors in radio receivers around 1906.

These include the spark-gap transmitter and the coherer.

The coherer became the basis for radio reception, and remained in widespread use for about ten years, until about 1907.

The first radio receivers used a coherer and sounding board, and were only able to receive Morse code.