We have a stimulation isolator (A365). When we put the stimulus and recording electrodes into solution (even with miliq water), some current came out (see attached). The current was gone when the stimulus electrode was out of solution. Would you please take a look and help us to solve this issue?
Here are what we used in field recordings: twisted nichrome wires for stimulation electrode, MultiClamp 700A amplifier, and digidata 1440A. BNC cables for connections. Sometimes, I heard noise sound when I give a stimulation.
Does anyone have idea about this issue?
Thank you
In which condition this current came out. At the begining of a pulse it seems, and probably there is a capacitance coupling between the electrodes, and the pulse is being filtered for low frequencies.
Try not using miliQ water but saline solution, and see what happen with repeptitive pulses.
We have also found that sometimes WPI isolators introduce glitches. Charge the isolator batteries at full.
Regards
Enrique
Thank you, Dr. Soto. Yes, it came out at the beginning of a pulse. The same current came out when I use saline solution and fully charged battery.
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