I have created three waveforms to accomplish what you needed.
When run at the frequency specified in their name, they deliver two pulses of 20 microseconds separated by 100 microseconds.
Due to the extremely short duration of the pulse, and the fact that the waveforms could only have 1024 data points, a simple square waveform with positive amplitude has been used.
So, if you want two 20us pulses separated 100us at a rate of 50 Hz, use MM_Galvanic50.csv and select a freq of 50Hz. This is the lowest freq that can be used.
If you want two 20us pulses separated 100us at a rate of 100 Hz, use MM_Galvanic100.csv and select a freq of 100Hz.
If you want two 20us pulses separated 100us at a rate of 150 Hz, use MM_Galvanic150.csv and select a freq of 150Hz.
Copy the waveforms to your \Spooky2\Waveforms folder, relaunch Spooky2 and they'll be available in the custom waveforms menu.
Use an amplitude of 20V, select Inv+sync, and use the Boost(1.0 2.0 3.0)
For more details, please check the link: