Nagra NAGRA 4.2 Instruction Manual - page 19
To wind a tape fast forward use switch (23) as for rewind. However, it is not necessary to open the pinch roller
gate. The "FAST FORWARD" position of the toggle switch is only active when the main function selector is in the
"PLAYBACK" (with loudspeaker) position. This is done to prevent accidental winding of the tape during recording.
While winding the tape fast forward, the audio on the tape will be heard through the internal loudspeaker. To
avoid damage to the loudspeaker, use volume control (42) to decrease the level.
Playing Back a Recorded Tape
Rewind the tape as explained above, then set main function selector (4) to one of the two possible "PLAYBACK"
positions (either with, or without loudspeaker). The signal from the tape is now available on line output banana
output connectors (45/46) on the right side of the recorder. If line and phones switch (1) is in the "TAPE" posi-
tion, the signal is fed directly to the line outputs with no possibility for adjustment. However, if it is in the
"DIRECT" position then the output may be adjusted with the "LINE AND PLAYBACK" potentiometer.
The frequency response may also be modified using "FILTER" switch (13).
Working with Headphones
If headphones are to be used, they can be plugged into jack socket (17).
The level of the headphones may be adjusted using potentiometer (18). In record, the signals can be monitored
either off tape or directly, depending on the position of the line and phones switch.
NOTE:
When the machine is in the "TEST" position, the headphones output is always fed with the "DIRECT"
signal.
The headphones output will accept a 1/4" stereo Jack connector and can be used with headphones having an
impedance from 50
Ω
to 600
Ω
.
During playback, the headphones may be used for monitoring. In the position "TAPE" the signal coming from the
tape can be heard. In the position "DIRECT" a mixing of the signals coming from the microphones and from the
tape can be heard. The mixing of these signals can be controlled by means of the potentiometers "MIKE 1",
"MIKE 2" and "LINE AND PLAYBACK".
To listen to the recording on an external amplifier/loudspeaker installation, connect it to the Line Output on the
right of the recorder. This output receives the same signal as is transmitted to the headphones. Loudspeaker sig-
nals should not be allowed to feed a microphone. Under these conditions, the signal passes from the loudspeaker
to the microphone which retransmits it, producing a howling known as the Larsen effect (acoustic feedback).
To avoid this effect, the "LINE AND PHONES" switch should be placed in the position "TAPE" or the poten-
tiometers "MIKE 1" and "MIKE 2" turned down.
To playback in the headphones or to an external installation, the position "PLAYBACK" of the Main Function
Selector should be chosen. The internal loudspeaker is thus disconnected.
Precautions
The pinch wheel is automatically disengaged in the position "STOP" of the Main Function Selector. This enables
the Nagra to be stored with the Pinch Wheel and Tape Guido Control Lever in the closed position. If this lever is
in the disengaged position, the lid of the recorder cannot be closed.
Do not store the recorder with the Main Function Selector in any position other than "STOP", as this will cause
a "flat" to be formed on the pinchwheel and this will cause Wow and Flutter problems during future uses. To avoid
the accidental discharge of the batteries, put the "POWER" switch into "EXTERNAL", thereby disconnecting the
internal batteries (if installed).
If the recorder has to be stored for a long period of time, remove the batteries, as a corrosive liquid can leak from