Professional Recorder SP7 C

Stellavox, Geneva

Data
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Collections

  • Year
  • 1972 ?
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 257260

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Tape Recorder
  • Power type and voltage
  • Batteries / addl. power jack / AA: 12 x 1.5 / 12-20 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 3 inch = 7.6 cm
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Professional Recorder SP7 C - Stellavox, Geneva
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 270 x 210 x 82 mm / 10.6 x 8.3 x 3.2 inch
  • Notes

  • Stellavox SP7 C is a Professional Tape Recorder using magnetic tape of ¼” width. It supports reels of 5” of diameter (10” ¼ of diameter with the accessory ABR).

    Recorder SP7 is a modular recorder where electronic modules and head block can be easily changed. Mono and stereo recorders can be made with the same basic structure. Frequency response is flat (± 2 dB between 30 Hz and 16 kHz). Some versions have a better upper frequency response (Stellamaster SM7 reaches 28 kHz). Mono versions have a S/N of 70 dB. Recorder SP7 is within a case made of a machined block of aluminum. This recorder was an alternative to Nagra tape recorders; in a smaller shape and with an equivalent state of art mechanics and electronics. SP7 have 4 tape speeds (ranging from 9,5 cm/s to 76 cm/s),  extremely well controlled by an electronic servo system. The recorder uses an interchangeable head block where heads and biasing control circuitry is mounted. The head block presented in the pictures is optimized for the tape speed of 19 cm/s. Power supply: APS75

    Price as of 1977 without head block assembly.

    The SP7 was superseded with the improved model SP8 in 1977.

    Das portable Tonbandgerät Stellavox SP7 C basiert auf dem 1969 vorgestellten Grundmodell SP7. Durch auswechselbare Kopfträger für monophone (optional mit Neo-Pilotton für filmtonsynchrone Aufnahmen) oder Stereo-Aufnahmen einsetzbar. Der Verstärkerteil ist zweikanalig ausgeführt. Die Elektronik ist grösstenteils in auswechselbaren Steckmodulen enthalten. Die Entzerrung und Vormagnetisierung wird im Kopfträger eingestellt. Aussteuerungskontrolle kanalgetrennt mit Doppel-Modulometer. Spulengrösse max. 13 cm, mit dem Zubehör ABR (375,-DM) lassen sich 10" Spulen verwenden.

    Stromversorgungsgerät für Netzbetrieb: APS75

    Neupreis Stand 1977 für das Grundgerät ohne Kopfträger.

    Die SP7 wurde im Jahr 1977 durch die verbesserte Ausführung SP8 abgelöst.

  • Net weight (2.2 lb = 1 kg)
  • 3.4 kg / 7 lb 7.8 oz (7.489 lb)
  • Price in first year of sale
  • 5,400.00 DM
  • Author
  • Model page created by Moisés Piedade. See "Data change" for further contributors.

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The model Professional Recorder is part of the collections of the following members.

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