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the control to "playback" or "record", the pressure pads and pinch roller close on the tape simultaneously and It feeds through the machine at a steady rate.
On most machines of this type, you have only to operate a button or switch to move the tape rapidly backwards or forwards to another part of a recording. In other designs, the tape must first be lifted clear of the recording head and capstan so that it can pass directly from one reel to another.
Before you first connect the recorder to the mains, make sure that the supply is suitable. Nearly all recorders are intended for a 200-250 volt A.C. mains supply. (Details of the mains supply are marked on the electricity meter.) If you have an A.C. supply of less than 200 volts, get a step-up transformer to provide 230 or 240 volts for the recorder. If you have a D.C. supply, or none at all, you must get a battery model which uses a spring motor to drive the tape.
You will probably master the mechanical controls of your recorder in a few minutes. However, you can learn only by experience how to use the amplifier controls. These comprise a volume control and a tone control or controls. Voices, microphones and loudspeakers differ so greatly that it is useful to have separate controls for the bass and treble frequencies.
Recording Level
The setting of the volume control is important, not only during playback when you can hear the output of the amplifier, but also during recording when the loudspeaker is often inoperative. If you record at a low level, i.e., with the volume turned down, you may not be able to obtain sufficient volume during playback. Alternatively, when you turn up the volume for playback, a weak recording is largely obscured by hum.
On the other hand, it is equally important not to record at too high a level. There is a limit to the extent to which the tape can be magnetised. When this is reached, the tape suffers from saturation and an increase in the current
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