Build a $10 Adjustable Power Supply with LM317
Stop scavenging wall adapters. Build a rock-solid adjustable power supply for under $10 using the legendary LM317 IC.
Read More →
The Physics of Transformers: Core, Coils, and Magnetic Flux
No moving parts, no batteries — just coils and iron. Here's the physics that makes transformers almost feel like magic.
Read More →