All items tagged with Microphone and phone (40)

1-10-1987 | EE 36 October 1987 LOW-NOISE MICROPHONE PREAMPLIFIER A quality preamplifier that can be configured for low and high impedance, as well as ba...

1-07-1986 | EE 112 July/August 1986 192microphone-signal processor D1 In broadcasting systems, intercoms, and mobile radio telephones it is necessary to...

1-07-1985 | elektor July/august 1985 Microphones, unfortunately, produce onlyasmallsignalandthey,therefore, require a special pre-amplifier to boost the...

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

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...

1-07-1983 | 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...

1-07-1981 | P. De Bra low-noise microphone pre-amplifier -amp recording the roar of a lion. No single pre can guarantee a linear amplification of that k...

1-07-1978 | This microphone preamplifier incorporates automatic gain control, which keeps the output level fairly constant over a wide range of input...

1-12-1977 | This compact, low-noise, battery- powered preamplifier can be used to boost the signal from electret and low impedance dynamic micropho...

1-07-1977 | This preamp is specifically intended for use with low impedance microphones; its advantages are high output level, large ban...