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Nagra PORTABLE ANALOGUE AUDIO TAPE RECORDER User Manual

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N A G R A 4.2
PORTABLE ANALOGUE AUDIO
TAPE RECORDER
INSTRUCTION MANUAL
(KSA code No. 20 04 004 151)
Kudelski S.A.
NAGRA Tape Recorder Manufacturer
CH-1033 Cheseaux / SWITZERLAND
phone (021) 732 01 01 Copyright reserved for all countries
telex 459 302 nagr ch February 1991 Edition Printed in Switzerland
telefax (021) 732 01 00
http://www.nagraaudio.com

Table of Contents

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Nagra PORTABLE ANALOGUE AUDIO TAPE RECORDER Specifications

General IconGeneral
BrandNagra
ModelPORTABLE ANALOGUE AUDIO TAPE RECORDER
CategoryRecording Equipment
LanguageEnglish

Summary

Controls Description and Use

Tape Deck Components

Magnetic Heads and Capstan

Erase, Record, Pilot, Playback heads, and Capstan shaft.

Power Supply and Battery Management

Power Source Options and Connections

Using internal batteries or external power supply.

Polarization and Battery Monitoring

Safety warning for reversed polarization and battery voltage checks.

External Power Connector Details

Pinout and specifications for the POWER PACK connector.

Operating the Nagra 4.2

General Operation and Power

Using the main function selector and monitoring power.

Tape Speed and Standard Selection

Selecting tape speed and equalization standard.

Loading a Tape onto the Recorder

Step-by-step guide for loading magnetic tape.

Recording Operations

Making recordings using microphones or line input signals.

Tape Spooling and Playback

Operating fast forward/rewind and playing back recorded tapes.

Headphone Monitoring and Precautions

Using headphones and important operational precautions.

Audio Signal Paths and Level Control

Level Adjustment and Limiter Function

Manual level control and the function of the audio limiter.

Automatic Level Control and Signal Measurement

Automatic level control and measuring signal levels.

Pilot Signal System for Synchronization

Introduction to Neopilot System

Overview of the Neopilot system for synchronization.

Recording Pilot Signals

Methods for recording internal and external pilot signals.

Synchronizing Tapes and Pilot Indicators

Synchronizing tapes and using the pilot indicator.

Internal Synchronizer and Speed Varier

Using internal synchronizer and speed varier for precise timing.

Interference and Noise Reduction

Magnetic Heads and Azimuth Adjustment

Head Azimuth Adjustment Procedures

Procedures for adjusting head azimuth for optimal playback.

Bias Level Determination and Tape Characteristics

Procedures for determining optimum bias level for tapes.

Calibration and Maintenance Procedures

Neopilot Head Height and Azimuth Adjustment

Adjusting Neopilot head height and playback head azimuth.

Recording Head Azimuth Adjustment

Adjusting recording head azimuth for optimal recording.

Microphone Usage and Characteristics

Microphone Input Gain and Preamplifiers

Metering and Level Monitoring

Technical Specifications

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