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4. Combined Units
Most B
&
K instruments can be delivered in three different versions, and the
user can therefore, to his individual choice, order just that configuration,
which is convenient to his use.
The mechanical design is such that the instrument, which are delivered in
lightweight metal cases (Type A) as a standard fitting, can very easily be
mounted in any af three ways, i.e.:
Mahogany cabinet (Type B), frame for 19'' standard rack (Type
C),
orB
&
K
combination mounting unit.
Automatic Frequency Response Recorder Type 3306.
This unit contains a Beat Frequency Oscillator Type 1013 and the Level
Recorder.
It
is designed for automatically measuring frequency response
curves etc. in the frequency range of 200 Hz to 200 kHz. Recordings can be
Fig. 4.1. Automatic Frequency Response Recorder Type 3306.
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