Difference between revisions of "Ferrograph Logic 7"

 
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'''Ferrograph Logic 7'''
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__NOTOC__
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== Data ==
 +
{{navigation}}
 +
'''General'''
 +
* Manufacturer: Ferrograph
 +
* Model: Logic 7
 +
* Years of manufacture: 1976 -
 +
* Made in: England
 +
* Color lower part: dark brown (lighter than RAL 7013)
 +
* Colour middle part: light beige (lighter than RAL 9002)
 +
* Colour top: dark beige (darker than RAL 1019)
 +
* Remote control: Cable-Logic, optional
 +
* Power consumption: 100 Watt
 +
* Dimensions: 51,5cm wide x 44,5cm high x 25,5 cm deep
 +
* Weight: 26 kg
 +
* Original price approx.: 3.600 DM
  
Englische Handarbeit aus den 70iger Jahren.
 
Diese Version ist ohne Dolby (R) ausgeführt.
 
Alle tragenden Bauteile bestehen aus massiven Aluminium, aber trotzdem ist auch diese Logic 7, wie alle Ferrographen, mit 26Kg sehr schwer.
 
  
 +
'''Connections'''
 +
* Number of outputs: 4 stereo
 +
** Line, 600 Ohm, Speaker, Headphone (8-600 Ohm)
 +
* Number of inputs: 2 stereo
 +
** Line, Mic
  
[[Bild:Ferrograph_Logic_7_a1.jpg]]
 
  
 +
'''Technical Data'''
 +
* max. coil diameter: 26,5 cm
 +
* drive: 3 motors, (2 winders, 1 capstan)
 +
* heads: 3
 +
* tracks: 2
 +
* tape speeds: 9.5, 19, 38
 +
* Pitch variations: 0.08% at 38cm/s, 0.1% at 19cm/s, 0.17% at 9.5cm/s
 +
* Synchronization fluctuations: less than 1%
 +
* Overall frequency response: 30-20KHz at 38cm/s, 30-17KHz at 19cm/s, 40-14KHz at 9.5cm/s
 +
* Signal to noise ratio: better than 60dB
 +
* Signal-to-noise ratio: -
 +
* Distortion factor: less than 0.25%
 +
* Equalization: -
 +
* Crosstalk attenuation: Stereo 50dB; Mono 65db at 1000Hz
 +
* Cancellation attenuation: -
 +
* Premagnetization and extinction frequency: -
  
Die Logic 7 bietet vier Geschwindigkeiten, wobei immer drei direkt anwählbar sind (7.5, 19 und 38). Ferrograph Logic 7 ist als 3-Kopf Maschine ausgeführt, wobei die Aufnahme grundsätzlich durch die an der Frontplatte montierten Justage-Regler auf das "Original" eingepegelt werden kann. Diese Maschine ist eine Halbspurmaschine, wobei es auch eine Vierspur-Ausführung geben soll.  
+
 
Alle Eingänge, sowie alle Ausgänge sind als 6,3 mm Klinke ausgeführt, die unbeschaltet über interne Kontakte auf Masse liegen und somit der Begriff "offene Ein- bzw. Ausgänge" bei Ferrograph nicht anzutreffen ist, aber leider bei modenen Cinch-Verbindungen unvermeidlich ist.
+
'''Special Features'''
 +
 
 +
* Toggle switch horizontal/vertical operation
 +
* Tape tension switch for use with reels up to 26.5cm.
 +
* 10 watt control amplifier with pre-backband control.
 +
* Transfer switch for re-copying
 +
* Bias adjustment and display before and during recording
 +
* Duoplay, multiplay and echo without additional equipment.
 +
* Mixing of mic and audio signals.
 +
 
 +
 
 +
== Remarks ==
 +
English handmade from the 70s.
 +
This version is made without Dolby (R).
 +
All supporting components are made of solid aluminium, but nevertheless this Logic 7 is, like all Ferrographs, very heavy with 26Kg.
 +
 
 +
The Logic 7 offers four speeds, whereby three are always directly selectable (7.5, 19 and 38). Ferrograph Logic 7 is designed as a 3-head machine, where the recording can basically be levelled to the "original" by the front panel mounted adjustment knobs. This machine is a half-track machine, although a four-track version is also said to be available.  
 +
All inputs, as well as all outputs are designed as 6.3 mm jacks, which are connected to ground via internal contacts without being switched. Thus, the term "open inputs or outputs" is not encountered at Ferrograph, but is unfortunately unavoidable with fashionable RCA connections.
 +
 
 +
 
 +
== Rubber parts ==
 +
Due to age, the rubber parts of these machines decompose. Especially the capstan roller and 3 pressure rollers.
 +
Since there is up-to-date again the possibility to vulcanize these on the original cores again, this is also with
 +
this machine as well.
 +
For example '''DAVE DURRANT''' (david.durrant@btinternet.com) from England offers a convincing service with very good results. To have all
 +
four wheels at Dave, this service costs about 70 EURO incl. shipping.
 +
 
 +
 
 +
==Pictures==
 +
[[Image:Ferrograph_Logic_7_a1.jpg|700px]]
 +
 
 +
== Reports ==
 +
The Ferrograph
 +
[[http://netzschwimmer.de/temp/audioclassica-test/static-page/index.php?content=musik/interest_deu_musik_02]]
 +
 
 +
 
 +
 
 +
 
 +
[[Category:Tape Machines]]

Latest revision as of 08:27, 7 September 2008

Data[edit]

General

  • Manufacturer: Ferrograph
  • Model: Logic 7
  • Years of manufacture: 1976 -
  • Made in: England
  • Color lower part: dark brown (lighter than RAL 7013)
  • Colour middle part: light beige (lighter than RAL 9002)
  • Colour top: dark beige (darker than RAL 1019)
  • Remote control: Cable-Logic, optional
  • Power consumption: 100 Watt
  • Dimensions: 51,5cm wide x 44,5cm high x 25,5 cm deep
  • Weight: 26 kg
  • Original price approx.: 3.600 DM


Connections

  • Number of outputs: 4 stereo
    • Line, 600 Ohm, Speaker, Headphone (8-600 Ohm)
  • Number of inputs: 2 stereo
    • Line, Mic


Technical Data

  • max. coil diameter: 26,5 cm
  • drive: 3 motors, (2 winders, 1 capstan)
  • heads: 3
  • tracks: 2
  • tape speeds: 9.5, 19, 38
  • Pitch variations: 0.08% at 38cm/s, 0.1% at 19cm/s, 0.17% at 9.5cm/s
  • Synchronization fluctuations: less than 1%
  • Overall frequency response: 30-20KHz at 38cm/s, 30-17KHz at 19cm/s, 40-14KHz at 9.5cm/s
  • Signal to noise ratio: better than 60dB
  • Signal-to-noise ratio: -
  • Distortion factor: less than 0.25%
  • Equalization: -
  • Crosstalk attenuation: Stereo 50dB; Mono 65db at 1000Hz
  • Cancellation attenuation: -
  • Premagnetization and extinction frequency: -


Special Features

  • Toggle switch horizontal/vertical operation
  • Tape tension switch for use with reels up to 26.5cm.
  • 10 watt control amplifier with pre-backband control.
  • Transfer switch for re-copying
  • Bias adjustment and display before and during recording
  • Duoplay, multiplay and echo without additional equipment.
  • Mixing of mic and audio signals.


Remarks[edit]

English handmade from the 70s. This version is made without Dolby (R). All supporting components are made of solid aluminium, but nevertheless this Logic 7 is, like all Ferrographs, very heavy with 26Kg.

The Logic 7 offers four speeds, whereby three are always directly selectable (7.5, 19 and 38). Ferrograph Logic 7 is designed as a 3-head machine, where the recording can basically be levelled to the "original" by the front panel mounted adjustment knobs. This machine is a half-track machine, although a four-track version is also said to be available. All inputs, as well as all outputs are designed as 6.3 mm jacks, which are connected to ground via internal contacts without being switched. Thus, the term "open inputs or outputs" is not encountered at Ferrograph, but is unfortunately unavoidable with fashionable RCA connections.


Rubber parts[edit]

Due to age, the rubber parts of these machines decompose. Especially the capstan roller and 3 pressure rollers. Since there is up-to-date again the possibility to vulcanize these on the original cores again, this is also with this machine as well. For example DAVE DURRANT (david.durrant@btinternet.com) from England offers a convincing service with very good results. To have all four wheels at Dave, this service costs about 70 EURO incl. shipping.


Pictures[edit]

Ferrograph Logic 7 a1.jpg

Reports[edit]

The Ferrograph [[1]]