Here’s where I did some actual science!
First in August 2017:
Earlier I had redrawn Volney Mathison’s electropsychometer circuit, which was stolen by Hubbard to create his fake religion. I speculated that it would be more interesting with a zero-center meter instead of Volney’s one-way meter protected by diode. Redrew it again, substituting NPN transistors for the tubes, 18-volt power for 250-volt power, and eliminating the diode. Some of Volney’s suggested R values aren’t standard, so I sub’d the usual 20% standard values.
Built it on my usual breadboard using a zero-center meter. After fiddling with the pots, sure enough it works as specified.
Body resistance registers on the meter. In other words, it’s a bridge-style ohmmeter. Not surprising at all, but it’s nice to verify WITH ACTUAL EXPERIMENT that Volney’s ckt does what it’s meant to do! Also the pots do what the patent says they do. One is balance, other is sensitivity.
Next I’ll try to rejigger it as differential, with an electrode for each side of the body and a centerpoint on the neck.
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Volney’s own use of the meter strongly implied a zero-center pattern, even though the meter itself was one-sided. So in some sense I’m retrofitting Volney’s meter to match Volney’s philosophy. Of course it was mostly** hooey, but Volney was vending harmless hooey, which helped some people to loosen up and solve their own problems. Hubbard used the same hooey to create a vicious Mafia that harnessed people to enrich and empower Hubbard. Crucial difference.
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And then I resumed in March 2018 after getting busy with courseware.
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I decided to build it into a proper box, with meters and switches and pots mounted permanently. Along the way I realized that the box would be far more useful as a general breadboard lab setup, so I swerved in that direction. The box is a nice lab for all sorts of tube and transistor stuff, with dual-voltage A and B supplies. After long distraction by purposeful work and winter and medical crap, I got it done, and then built the differential Volney on the breadboard.
Here’s the box:
Here is one of my slipknot electrodes, made of desoldering braid**. The two diff inputs go on wrists, the center ground goes on neck.
I tried it out, and got nice sensitive diff motion on the meters. One meter shows the side-to-side diff, and the other shows the mean current drawn by both.
BUT: Before I could settle into an experimental mode, I realized the applied voltage was painful on both the wrists and neck, and I could also tell that the voltage was starting to affect brain and heart. Possibly getting into the vagus nerve. I switched off quickly and gave up the attempt.
QUESTION: Aside from the differential aspect, this setup applies roughly the same voltage and current to the body as Volney’s original tube version. The E-meter, after Hubbard took it over, was considered to be a passive “auditor” in Hubbardese. It wasn’t advertised as an active shaper of brain and heart function. When the “therapist” adjusted the E-meter, was he really adjusting the stress response of the victim? I have to say YES.
More specifically, this was in fact an electrotherapy device, not a measuring device. Earlier electrotherapy devices always had controllable current, and the therapists constantly monitored and asked the patient about discomfort. Mathison’s device didn’t have a current adjustment.