A-695 1945
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Since 1945, the automobile radio A-695 has produced the Leningrad Scientific Research Institute-695. In mid-1945, the ZIS-110 car, the new flagship of the domestic auto industry, was put on the conveyor of the main plant in the country. The standard equipment included a radio "A-695", which has 5 ranges; three LW, NE and two HF. The receiver was installed on the ZIM car that appeared five years later - despite the double difference in the voltage of the on-board network. The A-695 car radio is a six-lamp superheterodyne. Radio reception is carried out on a telescopic whip antenna length of 0.9 meters. The receiver is made in the form of two blocks. One of them contains a receiver with a loudspeaker, the second - a disassembler with filters. One of the features of the receiver is the absence of a variable capacitor in it. The setting of the contours is made by ferro inductors. The range switch mechanism (push-button type) is mounted together with a scale and an assembly of coils of medium and short waves. The scale of the receiver has a conditional graduation in the form of uniform divisions and is illuminated from the ends, and the scale color changes depending on the position of the tone control. Red color corresponds to a wide bandwidth, green narrow. In the range of DV receiver can receive only one pre-selected radio station. The handle for its presetting is on the back cover. For the ranges of LW and ST, separate ferroinductors are used with which the input circuit is adjusted. In the range of short waves in the circuit includes a mid-wave coil in parallel which connects various HF coils corresponding to all three stretched bands. In this case, all input circuits are tuned in advance to the average frequency of each of these bands and are not rebuilt when receiving different stations. Tuning to the frequency is made by the local oscillator circuit. In the CB and HF bands, the tuning is smooth, and in the DV band, the loop is pre-tuned to the station frequency, after which the button is pressed. Received frequency ranges: DV 165...400 kHz, CW 560 ... 1400 kHz. KV-19m 15 ... 15.35 MHz, KV-31m 9.3 ... 9.8 MHz, KV-49 m 5.8 ... 6.5 MHz. IF 460 kHz. Sensitivity in the ranges of DV, SV - 100 µV, at KV-30 µV. 46 db selectivity. Output power 4 watts. The power of the filaments is supplied directly from a 6 volt car battery and a high (anode) voltage is obtained from the "RU-456" cell, designed for normal operation from a 12-volt source. And since the battery voltage is 6 volts, the breaker works underload, extending the service life. Anode voltage has a value of 210 V and a current of 70 ma. The starting relay and power supply filter parts are included in the case with the transformer.
Documentation:
Information from collection of Valery Khartchenko