WOLLENSAK (3M) 2770 Series cassette duplicator

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  Page 1: Picture, Specifications, History.
  Page 2: Schematic, Amplifier PLAY/RECORD.
  Page 3: Schematic, Bias Oscilator, Switching, Record head coupling.
  Page 4: Schematic, Power supply.
  Page 5: Schematic, Control logic.
  Page 6: Exploded View of Back Panel.
  Page 7: Exploded View Front panel and top.
  Page 8: Exploded View Transport (master).
  Page 9: Exploded View Cassette Well.
Page 10: Exploded View Transport (record).
Page 11: Block Drawing Audio.
Page 12: Block Drawing EOT/EOP Logic.
Page 13: Equipment Description.
Page 14: Duplication procedures.
Page 15: Preliminary Service.
Page 16: Tape transport mechanism.
Page 17: Electrical Operation.


Revised 07/02/06