Difference between revisions of "Universe CT2307"
 
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CT 2307 ; UNIVERSUM SENATOR ; Quelle International (Best.Nr. 008.625.6)
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CT 2307 ; UNIVERSUM SENATOR ; Quelle International (Order no. 008.625.6)
  
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Die SENATOR-Klasse stand bei Universum für Geräte der gehobenen Kategorie.
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The SENATOR class stood at Universum for devices of the upper category.
  
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Stereo-Logic-Cassetten-Tape-Deck 2 Motor - 3 Head - Dual Capstan mit High-Com  
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Stereo-Logic-Cassette-Tape-Deck 2 Motor - 3 Head - Dual Capstan with High-Com  
  
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Direct Front Loading System, beleuchtetes Cassettenfenster, integrierte Staubschutzkappe manuell zu bedienen ; Frontanschluß für 2 Mikrofone/Aux (DIN) , 1 Stereo-Kopfhörer (DIN) - Lautstärke regelbar.  
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Direct Front Loading System, illuminated cassette window, integrated dust cap to be operated manually ; front connection for 2 microphones/Aux (DIN) , 1 stereo headphone (DIN) - volume adjustable.  
  
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Dual-Capstan Drive (2 Tonwellen); doppelter Bandzug - Bandandruckrollen für Vortrieb und Bandspannung ; Logiksteuerung und Tipptastenbedienung (Laufwerksfunktionen über Hubmagnet gesteuert); elektronisch kontrollierter Servo-Motor für Lauffunktion und zusätzlicher Wickelmotor (Vor-/Zurück-Spulen).  
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Dual-Capstan Drive (2 tone shafts) ; dual tape tension - tape pressure rollers for advance and tape tension ; logic control and jog key operation (drive functions controlled by solenoid) ; electronically controlled servo motor for running function and additional winding motor (forward/reverse reels).  
  
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1 HARD-Permalloy-Doppeltonkopf - getrennt für Aufnahme und Wiedergabe in gemeinsamen Gehäuse ; 1 Ferrit-Löschkopf in Kompakt-Bauweise.  
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1 HARD-permalloy dual-tone head - separate for recording and playback in common housing ; 1 ferrite erase head in compact design.  
  
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4 High-Com Circuit - je ein Schaltkreis getrennt für Aufnahme und Wiedergabe sowie rechten und linken Kanal ; Geräuschspannungsabstand 76 dB  
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4 High-Com Circuit - one circuit each separately for recording and playback as well as right and left channel ; S/N ratio 76 dB.
  
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DNR-Störbegrenzer (Dynamic Noise Reductor) zum Abspielen von Cassetten, die mit anderen Rauschunterdrückungssystemen aufgenommen wurden.  
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DNR noise reducer (Dynamic Noise Reductor) for playing cassettes recorded with other noise reduction systems.  
  
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4 Bandsorten über 2 Kippschalter wählbar ; Fe²O³ (Ferrro-Oxid) IEC I - CrO² (Chromdioxid) IEC II - FeCr (Ferrochrom) IEC III - METAL (Reineisen) IEC IV.
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4 tape types selectable via 2 toggle switches ; Fe²O³ (Ferrro-Oxide) IEC I - CrO² (Chromium Dioxide) IEC II - FeCr (Ferrochrome) IEC III - METAL (Pure Iron) IEC IV.
  
  
  
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Es gab bei Quelle für das CT-2307A eine Umrüstung vom Dual-Capstan auf Single-Capstan da
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Quelle converted the CT-2307A from dual-capstan to single-capstan because
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viele Geräte Probleme mit Bandschlaufenbildung hatten.
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many devices had problems with tape loops.
  
  
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Dazu wurde die linke GA-Rolle durch den Quelle Kundendienst entfernt.
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For this purpose, the left GA roller was removed by Quelle customer service.
  
  
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Die linke Gummiandruckrolle ist beim Model CT 2337 bereits ab Werk nicht mehr vorhanden d.h. die
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The left rubber pressure roller is no longer present in the CT 2337 model ex works, i.e. the
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Änderung ist bereits ab Werk und nicht nachträglich durch den Quelle Kundendienst erfolgt.
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This means that the change has already been made ex works and not subsequently by Quelle customer service.
  
  
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Der Aufnahmepunkt bzw.die Befestigung/Haltedorn des linken GA-Andruckhebels vom CT-2337 wurde von einem Sprengring
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The mounting point or the mounting/holding pin of the left GA-pressure lever of the CT-2337 has been changed from a snap ring
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auf eine Befestigung per Mutter ab Werk sowie die Bandandruckführung und Gabel sowie Rückholfeder geändert !
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to a fastening by nut ex works as well as the belt pressure guide and fork as well as return spring changed !
  
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Also the potentiometer board of the headphone amplifier of the CT2337 was changed.
  
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Das Gerät wurde für 599/699 DM angeboten.
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Often forward and rewind problems are given - The cause is often a defective Idler...
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(A prov.Instandsetzung is possible by a hardware store O-ring)
  
  
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The device was offered for 599/699 DM.
  
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Bekannte Probleme:
 
  
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- Vor- und Rückspulen funktioniert infolge verschlissene Idler nicht mehr.
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Known problems:
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- Fast forward and rewind no longer work due to worn idler.
 
   
 
   
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   Abhilfe: Den oben liegenden Motor ausbauen,Sprengring der Idler Mechanik ausbauen (Feder beachten!),
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   Remedy: Remove the top-mounted motor, remove the snap ring of the Idler mechanism (pay attention to the spring!),
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   das erste Idlergummi ausbauen und gegen eine gleichgroße Gummidichtung aus dem Sanitärbereich tauschen.
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   remove the first Idler rubber and replace it with a rubber seal of the same size from the sanitary area.
  
  
  
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- Gleichlaufprobleme mit Höhenschwankungen (meist zum Bandende).
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- Synchronization problems with height fluctuations (mostly towards the end of the belt).
  
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   Abhilfe: Die Ursache sind die Wickeldorne die bei allen Geräten angebrochen sind und somit das
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   Remedy: The cause is the winding mandrels which are broken in all devices and therefore no longer transmit the torque.
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   Drehmoment nicht mehr übertragen - Hier helfen ein paar Tropen Kraftkleber zwischen Wickeldorn und Teller.
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   Torque no longer transfer - Here help a few drops of power glue between winding mandrel and plate.
  
  
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Das Laufwerk ist ähnlich aufgebaut wie das vom Telefunken RC-200 Deck.
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The drive is similar to the Telefunken RC-200 deck.
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Das RC-200 ist jedoch ein Single Capstan Laufwerk ohne Hinterbandkontrolle.
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However, the RC-200 is a single capstan drive without rear tape control.
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Viele Teile aus diesem Deck sind baugleich und können quergetauscht werden.
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Many parts from this deck are identical in construction and can be cross-changed.
  
  
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[[Bild:Universum_CT2307_Front.jpg]]
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[[Image:Universum_CT2307_Front.jpg]]
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[[Bild:Universum_CT2307_Schräg.jpg]]
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[[Image:Universe_CT2307_Slanted.jpg]]
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[[Bild:Universum_CT2307_Schacht.jpg]]
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[[Image:Universum_CT2307_Shaft.jpg]]
  
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[[Kategorie:Kassettendecks]]
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[[Category:Cassette decks]]

Latest revision as of 01:08, 29 September 2019

CT 2307 ; UNIVERSUM SENATOR ; Quelle International (Order no. 008.625.6)

The SENATOR class stood at Universum for devices of the upper category.

Stereo-Logic-Cassette-Tape-Deck 2 Motor - 3 Head - Dual Capstan with High-Com

Direct Front Loading System, illuminated cassette window, integrated dust cap to be operated manually ; front connection for 2 microphones/Aux (DIN) , 1 stereo headphone (DIN) - volume adjustable.

Dual-Capstan Drive (2 tone shafts) ; dual tape tension - tape pressure rollers for advance and tape tension ; logic control and jog key operation (drive functions controlled by solenoid) ; electronically controlled servo motor for running function and additional winding motor (forward/reverse reels).

1 HARD-permalloy dual-tone head - separate for recording and playback in common housing ; 1 ferrite erase head in compact design.

4 High-Com Circuit - one circuit each separately for recording and playback as well as right and left channel ; S/N ratio 76 dB.

DNR noise reducer (Dynamic Noise Reductor) for playing cassettes recorded with other noise reduction systems.

4 tape types selectable via 2 toggle switches ; Fe²O³ (Ferrro-Oxide) IEC I - CrO² (Chromium Dioxide) IEC II - FeCr (Ferrochrome) IEC III - METAL (Pure Iron) IEC IV.


Quelle converted the CT-2307A from dual-capstan to single-capstan because many devices had problems with tape loops.


For this purpose, the left GA roller was removed by Quelle customer service.


The left rubber pressure roller is no longer present in the CT 2337 model ex works, i.e. the This means that the change has already been made ex works and not subsequently by Quelle customer service.


The mounting point or the mounting/holding pin of the left GA-pressure lever of the CT-2337 has been changed from a snap ring to a fastening by nut ex works as well as the belt pressure guide and fork as well as return spring changed !

Also the potentiometer board of the headphone amplifier of the CT2337 was changed.

Often forward and rewind problems are given - The cause is often a defective Idler... (A prov.Instandsetzung is possible by a hardware store O-ring)


The device was offered for 599/699 DM.


Known problems:

- Fast forward and rewind no longer work due to worn idler. 

 Remedy: Remove the top-mounted motor, remove the snap ring of the Idler mechanism (pay attention to the spring!),
 remove the first Idler rubber and replace it with a rubber seal of the same size from the sanitary area.


- Synchronization problems with height fluctuations (mostly towards the end of the belt). 

 Remedy: The cause is the winding mandrels which are broken in all devices and therefore no longer transmit the torque.
 Torque no longer transfer - Here help a few drops of power glue between winding mandrel and plate.


The drive is similar to the Telefunken RC-200 deck. However, the RC-200 is a single capstan drive without rear tape control. Many parts from this deck are identical in construction and can be cross-changed.


Universum CT2307 Front.jpg File:Universe CT2307 Slanted.jpg File:Universum CT2307 Shaft.jpg

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