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Nächste Überarbeitung		Vorhergehende Überarbeitung
en:crf-220 [2021/05/31 21:33] – angelegt mben:crf-220 [2021/05/31 21:34] (aktuell) – [Development] mb
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 In the early seventies, Sony launched the "giant" portable radios **CRF-220** and its twin with an additional [[VHF]] band [[CRF-230]]. Like the later receivers of Sonys CRF series - the top of the range Sony sets were much more expensive than average sets and sold only in small numbers. In the early seventies, Sony launched the "giant" portable radios **CRF-220** and its twin with an additional [[VHF]] band [[CRF-230]]. Like the later receivers of Sonys CRF series - the top of the range Sony sets were much more expensive than average sets and sold only in small numbers.
  
-{{:images:sony-crf-220.jpg?500|Sony CRF-220}}+{{:images:sony-crf220.jpg?500|Sony CRF-220}}
 ===== Technical data ===== ===== Technical data =====
   * [[Principle]]: [[Double conversion superhet]], [[IF]] 1.6-2.2 MHz / 455 kHz (UK: 468 kHz) / FM 10.7 MHz   * [[Principle]]: [[Double conversion superhet]], [[IF]] 1.6-2.2 MHz / 455 kHz (UK: 468 kHz) / FM 10.7 MHz
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   * Car battery adaptor DCC-126   * Car battery adaptor DCC-126
    
-{{:images:sony-crf-220-front.jpg?600|Sony CRF-220}}+{{:images:sony-crf220-front.jpg?600|Sony CRF-220}}
 ===== Operation ===== ===== Operation =====
 The high end portable receiver comes in a cabinet covered with black leatherette, with a sturdy carrying handle at the top, a protective transport cover can be removed, it is equipped with a metal disc world-time converter and compartments for a logbook and documents. The high end portable receiver comes in a cabinet covered with black leatherette, with a sturdy carrying handle at the top, a protective transport cover can be removed, it is equipped with a metal disc world-time converter and compartments for a logbook and documents.
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 The large pushbuttons below the corresponding dials activate the shortwave ranges SW2-19, and the tuning knob is the one below it. The dial accuracy is probably around 10 kHz, which is usually sufficient to identify a station. The large pushbuttons below the corresponding dials activate the shortwave ranges SW2-19, and the tuning knob is the one below it. The dial accuracy is probably around 10 kHz, which is usually sufficient to identify a station.
    
-{{ :images:sony-crf220-dial.jpg?300|Sony CRF-230}} In the middle dial window, the vertical dials for SW1, medium and longwave are located, frequencies can be read with acceptable accuracy - again the band range is activated with the large button below and the large tuning knob below tunes the band. There is no separate fine tuning knob. +{{ :images:sony-crf220-dial.jpg?400|Sony CRF-220}} In the middle dial window, the vertical dials for SW1, medium and longwave are located, frequencies can be read with acceptable accuracy - again the band range is activated with the large button below and the large tuning knob below tunes the band. There is no separate fine tuning knob. 
  
 Located at the far right are the dials, band selector buttons and the tuning knob for the VHF broadcast band. In the lower row of controls, below the S-meter, are the tone controls for treble & bass, the volume control and below that the RF gain control, with the control pulled out, MGC i.e. manual control of the [[RF gain]] is possible. Located at the far right are the dials, band selector buttons and the tuning knob for the VHF broadcast band. In the lower row of controls, below the S-meter, are the tone controls for treble & bass, the volume control and below that the RF gain control, with the control pulled out, MGC i.e. manual control of the [[RF gain]] is possible.
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 ==== Development ==== ==== Development ====
-{{gallery>:images?sony-crf-220*.jpg&0&80x80&lightbox&showtitle&titlesort}}+{{gallery>:images?sony-crf220*.jpg&0&80x80&lightbox&showtitle&titlesort}}
 ==== Further information ==== ==== Further information ====
   * [[https://www.radiomuseum.org/r/sony_crf_220_crf220.html|Sony CRF-220 on www.radiomuseum.org]]   * [[https://www.radiomuseum.org/r/sony_crf_220_crf220.html|Sony CRF-220 on www.radiomuseum.org]]
en/crf-220.1622489606.txt.gz · Zuletzt geändert: 2021/05/31 21:33 von mb