More about phone (291)

1-03-1985 | speech for microcomputers phoneme synthesizer with Centronics input A phoneme (Greek: "speech sound") is a basic sound unit in a language. E...

1-02-1985 | microphone preamplifier elektor february 1985 Microphone extension cables are typical sources of noise. Signal losses caused by such cables...

1-09-1984 | data transmission by telephone elektor september 1984 In the last few years the telephone network, which was originally intended for voice c...

1-07-1984 | also usable for other audio signals This circuit is used together with the receiver described elsewhere in this issue to form the simplest i...

1-07-1984 | for unhampered listening pleasure This circuit is the receiver to match the transmitter published elsewhere in this issue. Together these tw...

1-07-1984 | see the phone ringing In many instances it is not only the hard of hearing who are unable to hear the telephone ringing: even with normal he...

1-06-1984 | To dispel any misgivings you may have had, we would like to start by emphasizing that the design published here has little in common with th...

1-01-1984 | gyrophone elektor january 1984 Most of us have heard the stereo effect of an express train, a gale force wind, or perhaps an artificially cr...

1-11-1983 | doorbell — or telephone - operated flash-light elektor november 1983 It was, of course, known before the outbreak of disco fever that flas...

1-07-1983 | 95 microphone amplifier with preset tone control The active parts of the circuit (ampli- fiers Al and A2) shown in figure 1 are contained in...