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Loudness compensation, or simply loudness, is a setting found on some hi-fi equipment that increases the level of the high and low frequencies. [1] This is intended to be used while listening at low-volume levels, to compensate for the fact that as the loudness of audio decreases, the ear's lower sensitivity to extreme high and low frequencies ...
E.H. Scott Radio Laboratories is sometimes confused with H.H. Scott. E.H. Scott was founded in 1925 by Chicago resident Ernest H. Scott. Its first product was the World's Record Super 8, a TRF (tuned radio frequency) design with typical harness wiring with 16 gauge silvered solid core copper wire employed in an array configuration that was typical to radios at the time. This construction ...
Tone control is a type of equalization used to make specific pitches or frequencies in an audio signal softer or louder. It allows a listener to adjust the tone of the sound produced by an audio system to their liking, for example to compensate for inadequate bass response of loudspeakers or earphones, tonal qualities of the room, or hearing impairment.
Marantz 2050L AM/FM stereo tuner (USA; 1978-1980) [1]. In electronics and radio, a tuner is a type of receiver subsystem that receives RF transmissions, such as AM or FM broadcasts, and converts the selected carrier frequency into a form suitable for further processing or output, such as to an amplifier or loudspeaker.
Although typically described as data ports, the interface between a radio and a TNC is almost entirely analog audio (plus lines for PTT and squelch).The connectors used for this purpose vary widely across TNC manufacturers, but modern radios that offer data ports have widely adopted the Mini-DIN 6-pin connector.
The 3220PE and 3225PE (PE being 'Power Envelope') are further improved versions of the 3020E and 3020i respectively, sharing circuit boards with the 3020 models, the main change being a different "dual voltage" transformer and improved power supply design. [20] [21] A 7175PE receiver model was also launched.