Portable transistor radio "Solnechny".
Portable radio receivers and radios on p / p.DomesticThe portable transistor radio "Solnechny" was developed at the beginning of 1959 by the Leningrad NIIRPA im. Popov. A special feature of the receiver is power supply from a small-sized solar battery built into the upper part of the case together with a built-in battery. When the receiver was turned off, the battery was recharged from the solar battery in normal daylight, this was enough for the normal operation of the radio for 3 hours a day. If it was necessary to listen for a long time, it was necessary to direct the light of the sun or a lamp of 60 ... 100 W to the solar battery. The receiver is assembled on 8 transistors. Range CB. When working with a ferrite antenna, the receiver sensitivity is 5 mV / m. Adjacent channel selectivity 12 dB. The rated output power of the amplifier is 25 mW. Sound pressure frequency range 300 ... 4000 Hz. The dimensions of the radio receiver are 240x105x68 mm. Weight 650 gr. The radio was made in a prototype. The body is made of paper pulp.