"Kit M2" R-250M2 {Р-250М2}

• Paese
• Unione Sovietica

• Produttore / Marca
• Industrial Union Proton; Charkov (Ukraine), see Charkov Radio Works N°158

• Anno
• 1966–1981

• Categoria
• Ricevitore militare

• Radiomuseum.org ID
• 82982

• Immagini
• Schemi

Previous Next

Previous Next

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Numero di tubi
• 20

• Valvole
• 6К4П 6К4П 6К4П 6К4П 6К4П 6К4П 6К4П 6Ж9П 6Ж9П 6Ж9П 6Ж2П 6Ж2П 6Ж2П 6Ж2П 6Ж2П 6Ж2П 6Ж2П 6Н3П 6П14П 2Д3Б

• Principio generale
• Supereterodina a doppia / tripla conversione

• Gamme d'onda
• Gamme d'onda nelle note.

• Tensioni di funzionamento
• Fornita mediante altra unità o unità principale. / 127/220/12 Volt

• Altoparlante
• - Questo apparecchio richiede altoparlante/i esterno/i.

• Materiali
• Mobile di metallo

• Radiomuseum.org
• Modello: "Kit M2" R-250M2 {Р-250М2} - Industrial Union Proton;

• Forma
• Boatanchor (pesante apparecchio militare o commerciale, > 20 kg)

• Dimensioni (LxAxP)
• 660 x 472 x 445 mm / 26 x 18.6 x 17.5 inch

• Annotazioni

• Successor of R-250M. 1.5-25.5 MHz in 12 ranges (turret tuner), with optional extension kit four additional ranges up to 33.5 MHz, AM/SSB/CW, optical projection tuning scale, motor driven AFC. 1st IF 1500-3500 kHz, 2nd IF 215 kHz. Variable IF bandwith from 1 to 14 kHz, LF filters for 0.3/2.5/5/8 kHz. Needs external power supply (WHD 305 x 220 x 250 mm, 12 Kg; DC 160 Volts, AC 6.3 Volts), or special 12 Volts DC/DC power transverter for mobile use.
  
  R-250, R-250M and R-250M2 where the most prominent and remarkable Russian short wave receivers. The receiver line produced and modernised from 1948 until 1981. The designer was Anton Antonovich Saveliev, Yuri Alexandrov (U1SX) and others. The project was started in 1940 and finalished in 1946 - 1949. First named AS-1 and AS-2 (designers initials) The set took the Stalin Premium prize in the early 50's. While working on the design numerous other developments were taken into account, but no examples were actually obtained, so it is basically an original Russian design. AS-2 is an early version of R-250 and identical to it. Only the labels are different. Very few AS sets were produced, so it is a rare thing among the R-250 series radios. The design is very rugged. The set comes in a cabinet with two compartments and is made from Aluminium (Silumin) castings which are used on chassis etc.
  
  All R-250 series produced from 1949 till 1981 largely in Charkov Radio Works (later IU "Proton") and some in other factories. Name "Kit" - translated "Whale". The receiver was mainly used in soviet and her allied armed forces. Later often found in HAM radio clubstations.

• Peso netto
• 95 kg / 209 lb 4 oz (209.251 lb)

• Fonte dei dati
• -- Original-techn. papers.

• Bibliografia
• V.I. Shapkin, The Red Ears, Moscow 2003

• Letteratura / Schemi (1)
• LTC William L. Howard, Largo

• Autore
• Modello inviato da Zenonas Langaitis. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 5 modelli, di cui 3 con immagini e 3 con schemi.
  Elenco delle radio e altri apparecchi della Industrial Union Proton; Charkov (Ukraine), see Charkov Radio Works N°158