Among radio amateurs, Soviet amplifiers are still popular today. On their basis, radio transmitting devices, acoustic systems for home theaters, electric guitars and other musical instruments are built. One big minus for lamp specimens is that they need AC power of 220 volts, since the power transformer can only work with it. Therefore, in the "field" conditions, such amplifiers are problematic to use. Yes, and the dimensions, weight, these devices are very impressive. What kind of low-frequency amplifiers were produced by the Soviet industry?
Electronics 50U-017S
The appearance of this Soviet sound amplifier is very attractive - the silver body is in perfect harmony with the chrome-plated adjustment knobs. The power button is located on the left side of the front panel in the upper corner.
Further, in order, the location of the controls and indications:
- The fluorescent indicator, almost eternal, is able to serve a couple of hundred years for sure. It just needs proper care.
- Switching organs of two pairs of acousticsystem.
- Bass and treble tone controls. By the way, the peculiarity of this amplifier is the presence of filters that cut off the high-frequency part and leave only the low one.
- Loudness control buttons.
- Switch between Stereo and Mono modes.
- On the right side are the volume and balance controls.
There is still an inconvenience - 5-pin plugs are used, which you will not find now. But if you wish, you can install adapters or completely get rid of the old connectors by installing new RCAs in their place. If you do not modify the amplifier circuit, then in terms of playback quality it is much inferior to the ULF "Brig". But it wins in all respects against "Radio engineering U-101" or "Vega".
Radio Engineering U-7111
This is one of the best Soviet amplifiers, at one time it was the most "budget" option. But when compared with modern Chinese-made amplifiers, Radiotekhnika U-7111 is far ahead of them. The ULF kit included a tuner (radio signal receiver) and a player.
Externally very attractive amplifier, there is an equalizer with five bands. The front panel contains the following controls:
- Mono mode button.
- Button to turn on the high pass filter.
- Loudness.
- Tone control for high and low frequencies.
- Volume control.
On the backthere are connectors for connecting sound sources - there are four in total. A maximum of two speakers are connected to the ULF output. There is also a terminal for ground connection, fuse and sockets. In general, music lovers rate the sound as good, but out of 5 points, the maximum is 4 plus.
"Brig U-001" description
One of the best high class Soviet amplifiers is "Brig U-001". The sound quality is very high, but only if a good speaker system is used. ULF holds bass very well, extraneous sounds are completely absent. When listening to music at high volume, the speakers do not lock, allowing you to enjoy the music to the fullest.
Mid and high frequencies are also well transmitted by the amplifier - they stand out brightly, so listening to jazz, blues, orchestral music will be great. Everything is great, but the mass of the amplifier is more than 25 kg. With excellent playback of live music and films, it is worth talking about the disadvantage - it is uncomfortable to listen to rock and metal.
Appearance "Brig U-001"
The front panel is silver and contains the following controls:
- Bass and treble controls.
- Balance right and left channels.
- Loudness enable button.
- Button to cut high frequencies.
- Headphone jack 5, 25 (it is better to connect through the appropriate adapter).
Many positionsoutput selector, which allows you to connect multiple sources and speakers to the amplifier. And in the process of listening, you can quickly switch. In general, a very high-quality ULF, but it’s just getting harder and harder to buy it, especially in the original version.
Corvette 100U-068S
Another Soviet amplifier, in some respects not inferior to the above-described "Brig", but in general a little worse.
On the front panel of the ULF there are such controls and indications:
- Adjust high and low pass filters.
- Selector for input selection.
- Smooth Loudness.
- Indicator of exceeding the signal level at the output (overload).
- Volume control.
- Protection against short circuit, overheating.
- LED indicator.
When connecting an 8 ohm speaker system, the power is 60 W, 4 ohm - 90 watts. The maximum power consumption is 275 W. A huge minus of the device is the plastic case, since the mass of the amplifier is very large. Very reliable technical part of the amplifier is balanced by poor quality cabinet and controls.
90U-2 Kinap
You can't ignore such a legend, because it was with his help that most of the Soviet people heard the voices of their favorite actors. This is a Soviet tube amplifier that was used in mobile cinema installations.
The number of adjustments is not amazingimagination, as described above - there is a volume, bass and treble setting, an overload indicator lamp. Also on the top there is a window to which a device was connected that read sound from the film.
Audio tracks were applied on the side of the tape, which were read by optical devices. 90U-2s were produced in the 60s, when only the KGB could hear about magnetic tape. It has not yet been used in civil engineering. It is perhaps better to keep silent about the sound quality - it leaves much to be desired. But still, some musicians, lovers of "tube" sound, use these amplifiers as a base for guitar VLFs.
If you need to play music, then it is better to choose one of the above Soviet sound amplifiers. Power supply 90U-2 from a 110 Volt network; to connect to 220 V, you will need to use a special unit. This will not add convenience, and the input for connecting a signal source is impressive in size - about 4-5 cm in diameter and with three holes. Even the Euro-plug freely enters these holes, it is not fixed.
