GEAR RECOMMENDATIONS
Hey there, Cleveland!
These are my recommended gear picks for your circuit-bending needs:
Potentiometers (Assorted set):
https://www.amazon.com/Gikfun-Knurled-Linear-Potentiometer-Arduino/dp/B0146DJWFU/ref=sr_1_2?ie=UTF8&qid=1477804542&sr=8-2&keywords=potentiometers
Source footage box:
https://www.amazon.com/Micca-Full-HD-Portable-Digital-Player/dp/B008NO9RRM/ref=sr_1_1?ie=UTF8&qid=1477804853&sr=8-1&keywords=micca+box
Time Base Corrector (these will mostly be found on eBay):
Sima SFX-9
Videonics MX-1
Video Time Base Corrector Synchronizer Color Corrector:
http://www.ebay.com/itm/Video-Time-Base-Corrector-Synchronizer-Color-Corrector-/250889809126?hash=item3a6a32ace6:g:DiUAAOSw3xJVYR~H
Video capture card (cheap)
https://www.amazon.com/TOTMC-Capture-Adapter-Windows-Window/dp/B00M7T8T1E/ref=sr_1_4?s=electronics&rps=1&ie=UTF8&qid=1477805114&sr=1-4&keywords=video+capture+card&refinements=p_85%3A2470955011
Video Capture Card (fancy)
https://www.amazon.com/Blackmagic-Design-Intensity-Shuttle-BINTSSHU/dp/B003WSQTWU/ref=sr_1_1?s=electronics&ie=UTF8&qid=1477805202&sr=1-1&keywords=blackmagic+intensity+shuttle
DSLR for video (the one I use, though I suggest you buy body-only on eBay, but those tend to be grey-market, so no warranty)
https://www.amazon.com/Nikon-Digital-Focus-S-18-55mm-3-5-5-6G/dp/B00HQ4W1QE/ref=sr_1_3?ie=UTF8&qid=1477805275&sr=8-3&keywords=nikon+d3300
35mm lens for least distortion
https://www.amazon.com/Nikon-AF-S-NIKKOR-Focus-Cameras/dp/B001S2PPT0/ref=sr_1_3?ie=UTF8&qid=1477805302&sr=8-3&keywords=35mm+lens+nikon
Tripod with Pistol Grip
https://www.amazon.com/Ravelli-APGL4-Professional-Tripod-Adjustable/dp/B003SQEAY0/ref=sr_1_3?ie=UTF8&qid=1477805370&sr=8-3&keywords=tripod+pistol+grip
Devices to bend:
Videonics Thumbs Up Video Editor
Archer Video Enhancer
Archer Video Color Processo
And anything from the 70s-90s you can dig up, really!