1.1 INTRODUCTION
The NAGRA 4.2 was introduced originally in 1971. It is a portable 6.35mm (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 similar to the original.
The Nagra 4.2 can be delivered in two different versions both of which are available in either NAB
or CCIR equalization. These versions are as follows:
NQ-LSP
Non pilot
NQS-L
Pilot
Each version has three speeds: 38 cm/s, 19 cm/s and 9.5 cm/s (15, 7½ and 3 3/4 ips) with the
following standards: NAB and CCIR.
The Nagra 4.2 is a mono recorder recording full track audio on 6.35mm tape, and the Neopilot
synchronization system.
The audio inputs may be used with either the two internal microphone pre-amplifiers (switchable
between Dynamic, T power and Phantom power depending on the microphone pre-amplifier which
is fitted) or as a line input, via the QCE cable.
The NAGRA 4.2 also contains a switchable limiter, a built-in 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 ATN-3 or internal batteries.
The 4.2 may also be used with the QGB 10" reel adaptor, to allow the use of larger reels for longer
recording and playback.
