Portable transistor radio "Etude".
Portable radio receivers and radios on p / p.DomesticThe Etude portable transistor radio receiver has been produced by the Minsk Radio Plant since 1967. The receiver is assembled on 7 transistors and 3 diodes. It is intended for reception in the LW and MW bands. The receiver differs from others in the use of a transformerless amplifier. The small dimensions of the radio receiver are 136x76x24 mm and the weight is 250 grams, put it in the category of really pocket receivers. The power source is a Krona battery. Stabilization of the bias of the base circuits of transistors allows you to maintain sensitivity when the power supply is discharged up to 3 V. The real sensitivity of the receiver in the LW range is about 2 mV / m, in the MW range it is 1.2 mV / m. Selectivity on the adjacent channel 16 dB, on the mirror 26 dB. Maximum output power 100 mW. SOI 3%. The receiver uses a miniature loudspeaker 0.1GD-9. Reception is carried out on a magnetic antenna, but there is a possibility of connecting an external antenna. The battery life of the receiver is about 50 hours. In 1968, the receiver was modernized with the same name. Information about this option can be found in the Belov and Dryzgo reference book.
