Project: Restoring a Remote Control Unit For a Reel-To-Reel Tape Player/Recorder: OLIMP DU-005 (in Russian: ОЛИМП ДУ-005).

Another week... another purchase.
Today I've added a new device to my collection; it is the Remote Control unit OLIMP DU-005 (in Russian: ОЛИМП ДУ-005 - Система Дистанционного Управления).
Basically it is a unit that controls remotely the functions of a reel-to-reel compatible unit (Russian RTR's like Olimp 004 and 005, Electronika-004, and maybe other models I do not know about). It has also a power distributor module; it can supply power to 3 other devices.
I will start looking for specifications of this unit and I will make them available here.
Also I have to look for the connection cable between this unit and the RTR, I do not have this cable yet. Maybe the Russian visitors of this page can help me, if not with the cable, maybe with the connectors.
Please see some pictures below (the unit and the connectors):

Project: Restoring a Reel-To-Reel Tape Player/Recorder: OLIMP MPK-005 S-1.

I would like to introduce my second Reel-To-Reel Tape Player/Recorder: OLIMP MPK-005 S-1 (in Russian: ОЛИМП МПК-005 С-1).
I am not able yet to say anything about it, I've just bought it 4 hours ago. I finished a short exterior cleaning and now I am listening a tape using my headphones. In Play mode it works great with an 18cm tape. I will come back with details as I will be able to find any, I have to translate the user manual first, is in Russian.
Anyway, I am happy to find it and have it; I was looking for such a machine for some months.
Below you can see two pictures:

Dual CS 520: Data Information And Technical Characteristics.

I would like to introduce my "new" turntable, a Dual CS 520 Full-Automatic Belt Drive. I bought this turntable to replace the PD-D 351 Electronica Industriala, my old Romanian turntable, which is broken and waiting for a major repair operation, restoring the electronics board and maybe a new motor.
In the picture below you can see the Dual:

I have found it on Internet and it is coming from a very reliable source of analog audio equipment.
Few technical characteristics:

• Manufacturer: Dual;
• Model: CS 520;
• Was produced between 1983 and 1986;
• Manufactured in Germany;
• Color: satin-metalic;
• One output RCA connection;
• Belt drive;
• Full-automatic;
• Speed: 33 1/3 and 45 RPM;
• Signal to noise ratio: 72dβ;
• Wow and flutter: ±0.07% / 0.045% DIN / WRMS;
• Original cartridge: DMS239.

Now it is fitted with an Audio-Technica AT91 cartridge.

Project: Restoring a Reel-To-Reel Tape Player/Recorder: Rostov 105 Stereo - Introduction.

In the image above you can see my reel-to-reel tape player/recorder. It is a Rostov 105 Stereo, built in 1987 in the former CCCP (former Soviet Union). It was produced using as factory name a trading company: TENTO. TENTO (abbreviation from Technointorg) was founded in 1979 to export/import technical goods produced in CCCP.

I’ve bought this unit from an “ebay” like Internet site; I was wishing such a “musical device” for a long time. It is functional; you will be able to see in the following posts a short movie with it. Still, my intention is to work on it to check the functional parameters and to correct the deviations and faults I might find, I am almost sure I will find few since it is quite old.

Rostov 105: Date Informatii si Caracteristici Tehnice - Ultima Parte.

• Nivelul relativ al zgomotelor si perturbatiilor in canalul inregistrare/redare, dβ, cel mult: -63;
• Nivelul relativ al curentilor paraziti in canalul inregistrare/redare, dβ, cel mult: -50;
• Durata rebobinarii intregii role de 18cm cu banda magnetica avand grosimea 34μm, s, cel mult: 170;
• Alimentarea magnetofonului:
• Tensiunea, V: 220±22;
• Frecventa, Hz: 50;
• Puterea consumata, VA, cel mult: 200;
• Greutatea magnetofonului, Kg:
• Fara ambalaj: 21,9;
• Cu ambalaj: 26;
• Dimensiuni, mm:
• Fara ambalaj: 510x417x225;
• Cu ambalaj: 665x547x356.