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While not explicitly designed for use with a headstage, the
Model 1700 can be modified to accept a headstage for a minimal
charge.
We can modify the unit to work with a headstage, however,
this comes with a functional cost as well as an actual price
increase. Functionally, putting a headstage on the front end
of one of these units eliminates the ability to use the stimulation
mode on that channel of the amplifier, thereby preventing
the user from passing current to the site through the electrode.
In addition, the headstage is a DC unit, thus the amplifier
will saturate if the offset between the electrode and the
reference is too large. In the modified units, this is 1V,
which should still provide plenty of room to record most signals.
When we modify a unit for use with a headstage, we decrease
the gain on the inner channels by a factor of 10, so the overall
gain remains as indicated on the switch labels. The modification
consists of supplying power to drive the headstage, and this
requires a slight circuit modification.
Please contact us for an accurate price quote for the modification.
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