BlobWeird wrote:... an option for self oscillate or no self and i dont know what that means exactly. Could someone please clarify that for me?
Self-oscillate is like feedback. With a guitar and amp turned up loud, the energy from the speaker can excite the strings and pickup until it howls. You can lean the guitar against the speaker and walk away and it will keep howling until somebody pulls the plug.
In other electronic devices, the effect is similar. Some old analog synths had filters that would self-oscillate, so you could get a whistling sound out of them.
In the case of a delay pedal, maxing out the feedback knob could give you the same effect. Probably not real musical, but great for space jams.
Good luck building your kit. I started out in the 70s goofing around with kits and developed a career in medical electronic technology.