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General
features of the RK-400
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The
intrinsic noise is close to the minimal theoretical
noise, and a large bandwidth (50 kHz) is available
with a uniform frequency response on resistor
headstage. A gain from 1 to 1000 by steps of 1, 2, 5
can be applied to the headstage signal.
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It
can run in voltage clamp (VClamp) or current clamp (IClamp)
mode, with distinct holding and input commands, and it
can be switched from VClamp to IClamp, either manually
or through a remote command signal. Transient
compensations are switched automatically off when
going to current clamp mode, to prevent oscillations.
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Two
digital displays simultaneously indicate the voltage
and current.
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Transient
and leak neutralizations offer advantage of optimal
headstage amplification.
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A
series resistance compensation circuit and a
supercharging circuit permits a satisfactory control
of the potential or current to the preparation.
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Additional
features such as a duration adjustable signal (zap) to
penetrate cells, a 5 poles overshoot free (Bessel)
anti-aliasing adjustable filter, are provided.
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Gain
telegraph output (compatible P-Clamp)
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Delivered
with a dual resistor headstage HK-R-410/408 (10 GOhm/100
MOhm) and a PC S3 electrode holder
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