Portable transistor radio "Orbit".
Portable radio receivers and radios on p / p.DomesticSince 1965, the Orbita portable transistor radio receiver has been producing the AS Popov Riga Radio Plant. The Orbita class IV radio receiver is designed to operate in the medium and short (25 ... 75 m) wave bands, and one internal magnetic antenna is used to receive on both bands. The Orbita receiver was awarded a quality mark for its high electro-acoustic and operational qualities and modern external design. The receiver is assembled according to a superheterodyne circuit with 8 transistors and 2 semiconductor diodes. Listening to programs is carried out on the internal loudspeaker 0,1GD-6 or external miniature telephone TM-4. The radio is powered by four A-316 type elements connected in series. The sensitivity of the receiver in the CB and KB bands when receiving on the internal magnetic antenna is 1 mV / m, the selectivity in the adjacent channel is 20 dB, the attenuation of the mirror channel in the KB range is 10 dB, CB is 20 dB. IF 465 kHz. The AGC system of the receiver provides, when the input voltage changes by 26 dB, the output voltage changes by 8 dB, the volume is adjusted within 30 dB. Frequency response for sound pressure with non-uniformity of 14 dB - 450 ... 3000 Hz, average sound pressure 0.2 N / m, rated output power 100 mW, quiescent current 9 mA. The efficiency of the receiver is maintained when the supply voltage changes within 6.5 ... 3.8 V. The dimensions of the radio receiver are 150x80x35 mm, its weight is 340 g (without batteries).
