Como hacer el Transformador Para "Joule Thief" (ladrón de Julios)

Fabricación de circuitos Impresos SIN uso de calor

Solder on Aluminum

METRONOME (electronic) schematic with time signature LEDs

AC eddy current Induction Motor (with reverse)

Fast Reflexes Skill Game (2 player)

IR (infrared) remote control toggle switch / sequencer

LED as PHOTOSENSOR ?

512 color LED flasher (random)

1.5v (AA cell) to 50v DC-DC Voltage Booster

Resistor Color Code made easy

Burping Piggybank

Lissajous Figures on 8X8 LED matrix

Mini - Oscilloscope (DIY)

Accurate 1 Hz from AC mains

7 Segment display encoder (with diodes)

Tic-Tac-Toe Part-2 ( 3 in a row )

Tic-Tac-Toe Part-1 ( 3 in a row )

USB Traffic Light + PCBoard

Phantom Power Blocker

Polarity Inverter (charge pump)

Printed Circuit Board Sponge Etching method

PWM power led dimmer

DIY Logic Gates

Guitar Overdrive + Sub-octaver

UV LightSaber Nightlight

DC Power Supply (50w) using Halogen Lamp Transformer (electronic)

10 Year LED flasher + PC-board

Heatless (cold) Toner Transfer (for PCB)

UHF Remote Control receiver