Radio constructor "Fon-9".
Radio and electrical constructors, sets.Audio AmplifiersSince 1989, the radio designer "Fon-9" has been producing the Moscow plant "Elling". The stereo base expansion unit is assembled and intended for the design and modernization of radio equipment. The board assembly and the switch are designed to correct the crosstalk between the channels and improve the perception of the stereo effect in any stereo sound reproducing equipment due to the apparent change in the base between the loudspeakers. The block is a functionally complete unit, assembled using analog ICs of the K174 series, in the form of a module. Technical data: Band of reproducible frequencies 20 ... 20,000 Hz. Sensitivity at a nominal output voltage of 250 mV at a frequency of 1000 Hz in the "Stereo" mode is not more than 250 mV. Harmonic coefficient no more than 0.5%. Supply voltage 15 V. Using the set "FON-9" together with the sets "FON-6", FON-7 "," FON-8 "," FON-10 "and" FON-11 "you can assemble a high-quality VHF-FM stereo radio.
