Thesis – Prototype photos
Here’s a few photos of my ROUGH prototype. I’ll try to get a video up soon.
I’m using two phone pickup coils as EM antennas and sending the signals into two pre-amp circuits (which utilize the op134 chip as found in many DIY headphone amps) and sending the signals into the Ramsey amp I built.
This thing fits me well, and it rumbles in the presence of EM radiation, but it’s real loud because these tactile transducers have a range from 20-20k hz (the range of human hearing, natch), and thus they often get more screechy than vibratory. I don’t mind the sound, but it’s not what i’m after.
This prototype has led me to realize a couple of things.
1) I need to use bass shakers, which I’ve now procured. I’m using the Aura AST-1B-4.
2) I need to boost the signal more. Which means either more antenna or more pre-amp. Probably both. I plan on working on a new circuit tonight.