Make a spot welder.

Hair curler to bag sealer

Brightness/ Speed/ Temperature Control (AC)

Plastic bag sealer.

Logic Gates Visual.

Two 555 - H-Bridge. Forward/ Reverse Motor.

One 555 H- Bridge. Forward/ Reverse.

555 PWM ANY NPN Transistors.

555 PWM Any PNP Transistors.

LED driver (no PCB) for Ring Lights

Ultra Bright Ring Light.

YouTube Controller - practice anything in slow motion or loop it.

Make a Fake Record Player Turntable.

8002 Class "D" Amp.

555 Forward/ Reverse PWM (Basic)

555 Contact Free Voltage Detector

555 Basic Inverter.

555 PWM for Large AC Motors.

555 PWM Mini up to 2 Amps

Make an Oscilloscope - Pen Style (0 to 12 Volts direct)

9 volts battery to +9V, Ground and -9V. Dual polarity.

Make an Electric Violin for Under $25.

BLDC (brushless DC motor) control.

Make an Oscillating Saw.

Make a Basic Jig Saw

Make a simple solder pot using a solder iron and soldering tip.

Make a logic Probe.

Make PCB. Complete fabrication station.

How to Make a Sliding Miter Saw at Home (mini version).

Make a Mini Circular Saw/ Plunge Saw. Video 1