I remember electronics magazines sometimes had DIY projects - e.g.
A DIY EMG - https://archive.org/details/eti-top-projects-vol-6/page/106/mode/2up
or
"Learn to reduce tension levels" https://www.worldradiohistory.com/UK/Electronics-Today-UK/ETI-Top-Projects-1988-Vol-5.pdf
"Of course it should be stated that various mystics and yogis have previously demonstrated this type of ability but the fascination of biofeedback. The speed and ease with which this type of control can be learned."
shortcolin
npub18v…kpwxu
2025-05-12 17:12:39 UTC
in reply to nevent1q…00z3
Author Public Key
npub18vp2xruvu743mf7w2vtgdxaqfdxhtq56swem6jly48j63dd7tsjsnkpwxuSeen on
wss://relay.momostr.pinkPublished at
2025-05-12 17:12:39 UTCEvent JSON
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