all of the parts can be purchased for less than $100 total. there are tutorials on youtube for how to assemble it. it's supposed to work on HIV, Hep A,B,C, almost anything viral or bacterial. i used it when i had cancer. that is a more involved explanation. the result is i'm alive 5+ years later, cancer free and i haven't had a cold or flu since, and several other chronic issues, that i thought were normal are gone.
it never was FDA approved. this is my experience and is not medical advice.

if any part of my experience seems useful, let me know.

there are two schematics and parts lists in here.
http://www.bobbeck.com/pdfs/beck-protocol-handbook.pdf