CAMBRIDGE CED 1902 - Page 12

Installation
4
This four-channel device can be used with any amplifier to
prevent input saturation, as for instance when high voltages or
intense magnetic fields are used as stimuli. On receipt of a TTL
signal from external
trigger equipment it
clamps incoming
electrode signals for
the duration of the
trigger signal. It can
operate in several
different clamping
modes, as selected by
a rear-panel switch.
The External Clamp
Box
The 2804 External Clamp Box