Hey! Check out these tools I made. I designed these circuit debugging tools because I have all these simple needs to switch, drive, amplify, buffer, toggle, and level translate electric signals, but I never had tools that were convenient enough to help me. So I made some! Check them out: Here's what I have so far: H-Bridge Driver Level Translator ~20A N-Channel FET ~17A P-Channel FET (with integrated N-Channel gate drive circuitry) Precision Instrumentation Amplifier with customizable precision gain and precision 2.5V virtual ground for positive and negative inputs Push button and toggle switch Push button with schmitt trigger output 40AMP 110/220VAC relay Triac with heatsink and integrated zero crossing opto-islated driver High Voltage bi-directional voltage detector Microcontroller programmer protector: 5V accidental over-voltage auto-clamp (3 Amp current shunt) I'm thinking about offering these as kits for beginners and professionals to use for debugging. They can also be used as standalone minitools that can be used like LEGOs (tm) to build complete designs. What do you guys think? I am open to making more if you guys think there is something missing from my list. Thanks!