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1.1 INTRODUCTION
The Nagra 4.2 was introduced originally in 1971. It is a portable 6.35 mm (1/4") mono analogue audio tape
recorder designed for high quality recording having radio, cinema, and television applications.
Many mechanical and electronic modifications have been made to the machine since its release, to adapt it
according to modern day requirements. Despite all these modifications, the machine remains remarkably simi-
lar to the original.
The Nagra 4.2 can be delivered in two different versions both of which are available in either NAB or CCIR equal-
ization. These versions are:
NQÐLSP Non pilot
NQSÐL Pilot
Each version has three speeds: 38 cm/s. 19 cm/s and 9.5 cm/s (15, 7 1/2 and 3 3/4 ips) and has either the
NAB or the CCIR standard.
The Nagra 4.2 is a mono recorder recording full track audio on 6.35 mm tape, and the Neopilot
synchronization system.
The audio inputs may be used with either the two internal microphone preamplifiers (switchable between
Dynamic, T power and Phantom power depending on the microphone preamplifier which is fitted) or as a line
input, via the QCE cable.
The Nagra 4.2 also contains a switchable limiter, a builtÐin loudspeaker, and an internal reference generator for
line up, and calibration purposes.
Optionally the machine may be fitted with the NEOPILOT pilot option.
The machine may also be powered from either an external supply ATNÐ3 or internal batteries.
The 4.2 may also be used with the QGB 10" real adaptor, to allow the use of larger reels for longer recording
and playback.
