EXT-02F User Manual
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version 4.2
page 4
2. EXT-02F
2.1.
Components
The following items are shipped with the EXT-02F system:
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Amplifier (EXT-02F/2 or EXT-02F/1)
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User manual
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Optional: Differential headstage(s) with connectors
2.2.
System Description
The EXT-02F is designed for extracellular recordings of small voltage signals. The standard
model (EXT-02F/2) comprises of two identical channels, but a one channel version
(EXT-02F/1) is also available. In the following description of the system only one channel is
mentioned, because front panel elements of the two recording channels are identical.
The EXT-02F has a differential input with high input impedance to avoid noise. The output
voltage signal can be HIGH PASS or LOW PASS filtered, and is available either AC (HIGH
PASS filtered) or DC coupled with variable gain.
Two LEDs indicate whether the amplifier is running out of its linear range, and an analog
balance monitor makes the control of OFFSETS easy. A built-in audio speaker monitors the
output signal of one channel (A or B). A THRESHOLD function (in NOISE mode) can be
used for masking the noise of the baseline. A phone jack allows connection of an external
speaker (HEAD PHONES) or further audio amplification, e.g. computer sound card, active
speakers, power amplifier etc.
2.3.
Description of the Front Panel
Figure 1: EXT-02F/1 front panel view (one channel version)
