Since the beginning of 1984, the tape recorder-prefix "Elf-001-stereo" has been experimentally produced by the Vilnius ETF "Elf". MP is designed for high-quality recording on a tape of mono or stereo programs, with simultaneous or subsequent reproduction or listening with the help of stereo head phones and an external amplifier with speakers. The model has an electronic-logical system of operational control of operating modes, which allows to include them in any sequence, except when recording phonograms, the electronic system for controlling the tension of the magnetic tape and the rotation frequency of the driving motor; signal mixing from the microphone input is provided with signals from the pickup, radio or tape recorder inputs; synchronous recording and playback, i.e. simultaneous recording on one channel and playback on another; overwriting signals from one channel to another with level control; recording mono programs with an echo effect; Simultaneous playback (mixing) of 2 separate mono programs on the left and right channels. The MP has auto-stop, reverse, automatic reverse, rollback, allowing to return to the previous program in playback mode, bypassing rewind and temporary stop, allowing the tape to be stopped during recording pauses. The MP foreseen; tape consumption meter, the main mode indicator lights, the remote control of the modes for switching on, recording, reverse, pause, play, fast forward and back. The used magnetic tape A4309-6B, A4409-6B. The coil number is up to 18. The belt speed is 9.53 and 19.05 cm / s. The detonation coefficient at a speed of 19.05 cm / s ± 0.08%, 9.53 cm / s ± 0.15%. The operating range of the AF on the LV in the channel Z / V; at a speed of 19.05 cm / s 20 ... 20000 Hz, 9.53 cm / s 40 ... 16000 Hz. The harmonic coefficient on the LV is 1.5%. The relative level of noise and interference in the З / В channel at a speed of 19.05 -60 dB; 9.53 -56 dB. The voltage on the LV is 500 mV. The power output of the phone is 1 mW. Dimensions of MP 520x440x250 mm. Weight 34 kg. Review of MP P.V.P. Nick Vygandas. One of my friends worked in the design bureau of the plant "Elf" during the creation of the MP "Elf-001C".A batch of Akai reel was purchased and the task was set to make the machine better. Part of "Akayev" was disassembled for copying, part was left to compare. LSM was copied well, its engines, designed for the equipment of the plant. And everything turned out no worse than corporate. Heads were their own and with '' Wilma ''. It was released 20 MP. Electronics almost all with "Akayev" except for a pair of devices, with an attempt to repeat some nodes. At this stage, the project was closed, they were talking because of competition with the Kiev KB. 10 MP went to the metrology department where they wrote measuring tapes for the plant and the CMEA countries. Several MPs made stands for testing magnetic heads. Then they were handed over to the plant "Vilma". There are still a few MPs that used with "Akayami" to replicate test records.