Last Updated on January 15, 2023 by pg@petergamma.org
For long-term meditators which do not have a lot of money, we suggest to use a Tenocom EEG cap, as shown in this example here:
and modify the cap with a laboratory pump and water tubes, so that the cap can be used 24 * 7 as a low-cost high quality gel-free EEG cap.