SPA4 - $350

The SPA4 will accept input from almost any frequency generator, in addition to audio input signal as well. This comes at a cost, added complexity and several switches are required for the audio processing part. 

Price: $350 with heat sink and fan, assembled and tested.

[Also available as a kit for the technically skilled. You must supply your own heat sink and fan]

SPA4 assembled with heat sink and fan

© Henrik Lorange 2015
Disclaimer: I do not receive any commission, kickbacks or any favors from vendors or sellers of these parts or systems. All information is provided as-is. build this at your own risk. rife tech might not work for your condition. do your own research first. No medical claims are made for this system whatsoever.