Phones, Electronics & Radios

dj gift, industrial decor, Vintage rare item, dynamic microphone “Octave” MD - 55, produced in 1950-60 years. The microphone is powerful and heavy ( weighs 1kg 20grams), and is a prime example of 50's industrial design. The microphone is solid, rare, and a great retro decor element! Size: Height - 7"\18 cm. The diameter of the base is 5"\12 cm. The microphone is in vintage condition with signs of time and use. There is metal corrosion on the base, scuffs, minor scratches, missing plug connector, see video and photos. Attention! It is not possible to check the microphone's performance, so it is sold as a retro-decor! Please read photos and video carefully. Within 2-5 business days, your artwork will be carefully packed and sent. Transit time for orders worldwide is from 7 to 35 days. If you have any questions, email me any clarifications before you make and pay for the order. Make your decision wisely, I always come to the aid, if it depends on me. For any question please write me a private message. Due to the peculiarities of customs in different countries, the parcel may take longer than usual. Additional goods upon delivery are considered to be goods from a similar category. Oversized goods when combining parcels are paid at the higher cost of the selected goods. Thanks for understanding.

Dynamic Microphone "MD-55" produced of Tula factory "Octava". The microphone is in excellent working condition, tested with an ohmmeter. The bottom part is made of cast iron. The upper part with the microphone can be tilted forward or backward on the hinge. This microphone was repainted anew. On the front grille there are such inscriptions and symbols: the name of the microphone, the state standard number, the Oktava factory mark and the year of manufacture - 1959. This rare specimen of early releases of the late 50s, differs from most others same microphones, middle part, which is carved from steel coated with chrome and has a more complex hinge design (see photo 10). At most of the other of model 55 microphones later issues of the 60s, apparently in order to simplify and reduce the cost of production, the middle part was cast from aluminum without chromium coating and had a simpler design (in photo 10 on the right). Technical specifications: Directional characteristic - circle Nominal frequency range of 60-8000 Hz The unevenness frequency response of 12 dB Rated load impedance of 250 ohms The sensitivity of -72 dB Height 6.9" / 176 mm Diameter of base 4.6" / 116 mm Weight 2.8 lb / 1.3 kg

Quite a rare model of a Soviet microphone manufactured at the Oktava plant. In 9 years of selling dozens of other microphones, this is the first time I have such instance. There is also very little information about him on the Internet. Managed to find out that this model was developed in 1949 at the Institute of Broadcasting Reception and Acoustics named after A. S. Popov (IRPA) and was produced in small series at a pilot factory at this institute. It was also produced at the Tula "Oktava" factory. Instance from this factory is for sale. The microphone is in excellent working condition, tested with an ohmmeter. It was anew repainted. The top part is made of aluminum, the grille and middle part are made of chromed steel, the base is cast from cast iron. The name of the microphone, the state standard number (GOST), "Oktava" factory sign and the year of manufacture are engraved on the chrome grille - 1957. This is the year when the world's first artificial Earth satellite was launched in the Soviet Union. Technical data: Operating frequency range 50-10000 Hz Uneven frequency response in the operating frequency range no more than 8 dB Nominal load resistance 250 Ohm Standard on-axis sensitivity level -69 dB Sensitivity at frequency 1000 Hz at rated active load 1.8 mv⋅n-¹⋅m² Height 6.9" / 176 mm Weight 2.87 lb / 1.3 kg

Old, very stylish Soviet bakelite telephone designed for use in the director's office. In the instructions it is called a concentrator, its name KD - "Koncentrator Direktora" (Director's Concentrator). Manufactured in 1971. The case is generally in good condition, without damage, but in some places, as well as on some keys, scratches are visible. Functionality is unknown, but no damage is visible inside, two of the six incandescent warning lamps that should illuminate the names of subscribers from the front are missing. At the bottom, under the two blocks of signal lamps, there are two strips for attaching signs on which you can indicate the names of subscribers. You can see an example of this in photo 8. In my opinion, white names on a black background look more attractive than black ones on white. The six square buttons above were apparently designed to quickly call these subscribers without having to dial the number using the round disk. But if it is will be used for its intended purpose, in this case, the performance of its parts does not matter, since they most likely will be replaced with modern electronics, for example, from the walkie or Arduino GSM module for use with modern SIM cards, and instead of six incandescent signal lamps, LEDs can be installed. And of course, it can be used simply as a decoration for the interior. I have screenshots of the instructions in Russian for this phone, but if the phone will be redone, then there is no point in these instruction, which describe its structure and operation. Length 12.4" / 315 mm Width 7.6" / 195 mm Weight 7.8 lb / 3.56 kg

Rare large and heavy old Soviet microphone, in good working condition, tested with ohmmeter. The upper part can be tilted on the hinge. Made in 1956. The upper part is made of aluminum, the base is cast from cast iron, which is why the weight is so large. Microphones of the SDM series produced in the Stalin era from the late 40s to 50s at the Odessa factory "Red October". As can be seen from the number S/N 3654, the edition was small. The name SDM apparently means a studio dynamic microphone. The steel connector can be inserted into the microphone in two positions, possible for some two operating modes (when checking there was resistance in both positions). Technical data: Nominal frequency range: 60-8000 Hz Frequency response flatness: 12 dB Nominal load resistance: 200/600 Ohm Standard on-axis sensitivity level: -72 dB Sensitivity at frequency 1000 Hz at rated active load: mb⋅n-¹⋅m² 1.1/2 Directional characteristic type: Omnidirectional circular Height 7.28" / 185 mm Diameter of base 4.7" / 120 mm Diameter of the upper part 3.1" / 79 mm Weight 6 lb / 2.72 kg

Set from telegraph key, two buzzers for audible operation indication and connecting wire, in excellent condition, in original packaging Both buzzers are in working condition, when connected to keys and power sources, they should emit short or long beeps to the beat of pressing a key. Checking the operation of these buzzers can be seen in this video (test voltage 5.2 V): https://youtu.be/Kbi_8Fz_F4I Once upon a time in this set there were two identical keys, only this one left, but for its intended use it is not at all necessary to have a second exactly the same key, you can use any other Morse key that has at least two contacts for connecting wires. On telegraph key are shown on top Russian letters and their corresponding Morse code values. Manufactured at the 2nd Kharkov experimental plant "Promsvyaz" (Industrial communication). Size of key by base 4.3x2.7" / 110x70 mm