Exploration ·
Start with one transistor switching an LED, wire switches into gates, gates into an adder, feedback into memory, and memory plus a clock into a tiny CPU — then watch a real 6502 run a program you can read byte by byte.
Tool ·
Identify a tiny part from the code printed on it — a cited list of common SOT-23, SOD and SMA transistor, MOSFET and diode markings with pinout drawings, EIA-96 and 3- / 4-digit resistor codes, and ceramic, EIA two-character and tantalum capacitor codes.
Tool ·
Draw a schematic on a grid and simulate it in the browser — DC operating point with node voltages on the drawing, a transient "oscilloscope" with pulse and sine sources, and AC sweeps with Bode plots — then cross-check it against real ngspice (WebAssembly) or run any SPICE netlist.