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The Vilma-102-stereo and Vilma-110-stereo cassette recorders have been manufactured by the Vilma Vilnius Instrument-Making Plant since 1981.
Stationary with a through channel cassette MP Vilma-102-stereo is designed to work with magnetic tapes of all types in MK cassettes.
In the MP, a twin-engine LMC with a closed path and quasi-sensor control was used.
The electronic part is based on specialized integrated circuits and a combined magnetic recording and playback head.
The device has: indicators of average and quasi-peak signal levels, they work in recording and playback mode;
interference suppression device when switching modes;
companion squelch `` Dolby-B '';
tape consumption counter;
sampling device for its loop and hitchhiking.
You can remove the cassette and turn on the required operating mode without pressing the Stop button.
A circuit breaker disconnects the tape recorder from the network 1 ... 1.5 minutes after the transition of the LMC to the `` Stop '' mode.
There is a calibration of the recording current for the type of magnetic tape used, bias current adjustment, stepwise change in the signal level at the linear output, auditory control of the signal recorded and recorded on the tape.
The Vilma-110-stereo tape recorder-set-top box manufactured jointly is similar in design and construction to the above, the difference is only in the external design, other handles and buttons.
Belt speed 4.76 cm / s.
Knock coefficient ± 0.17%.
Operating frequency range on magnetic tape A4205-ЗБ 31.5 ... 14000 Hz, Ð4212-3Б 31.5 ... 16000 Hz.
Reducing the level of interference channel Z / V when you turn on the system ШП 8 dB.
The signal voltage on the LAN is 250 ... 700 mV.
Output power for stereo phones 10 mW.
Power consumption 50 watts.
Dimensions MP - 466x166x308 mm.
Its weight is 13 kg.
Since 1985, the plant has produced an improved MP "Vilma-102-1-stereo".
Here added a through channel Z / V and the remote control device with all the CVL modes on infrared rays.
Also improved some MP characteristics.
The operating frequency range of sound with tape A4212-ZB 31.5...18000 Hz.
The detonation coefficient of 0.15%.
The relative level of noise and interference with UWB is minus 64 dB.
Power consumption 20 watts.
Dimensions MP - 480x168x320 mm.
Its mass is 10.8 kg.