| The Chirping Bird |
TTL Line Selector |
LED Flashing Light |
| Electronic Cat |
TTL Data Selector |
Two-LED Winker |
| Sonic Fish Caller |
TTL Astable Multivibrator |
One Shot Light |
| Machine Gun Pulse Oscillator |
TTL Tone Generator |
LED Initials |
| Electronic Motorcycle |
Winking LEDs |
Wake Up Siren |
| Two-Tone Patrol Car Siren |
A One-Shot TTL |
Voice-Activated LED Logic Tester |
| Electronic Siren |
Transistor Timer with TTL |
Alternating Current Sound |
| Electronic Metronome |
Buzzin' LED |
Light Control Sound Circuit |
| Electronic Grandfather Clock |
Son of Buzzin' LED |
Sound Alarm Circuit |
| Light-Controlled Electronic Harp |
Set/Reset Buzzer 1 |
Study Timer |
| Horror Movie Sound Effects |
Set/Reset Buzzer 2 |
Kitchen Timer |
| Strobe Light |
Sound Machine |
Three-Input AND Gate Using Operational Ampliifier |
| Rapid LED Display Switching (Persistence Vision Test) |
Big Mouth |
Voice Level Meter |
| Capacitor Discharge/High Voltage Generator |
Shot in the Dark |
Power-On Reset Circuit |
| Capacitors in Series and Parallel |
Variable R-C Oscillator |
Delayed Timer |
| Resistors in Series and Parallel |
Oscillator with Turn-Off Delay |
Pulse Frequency Doubler |
| Light Dimmer |
Temperature-Sensitive Audio Oscillator |
White Noise Generator |
| Transistor Switcher |
Two-Transistor, Directly |
DC-DC Convertor with |
| Transistor Circuit Action |
Connected Oscillator |
Operational Amplifier |
| Sound Amplifier |
Push/Pull Square Wave Oscillator |
Code Practice Oscillator with Tone Control |
| Seven-Segment LED Digital Display Circuit |
Pencil Lead Organ |
(Simple-Diode Radio) |
| Basic LED Display |
LED Strobe Light |
Two-Transistor Radio |
| Transistor Control Switching of the LED Display |
Electronic Organ |
Wireless Code Transmitter |
| Transistor, CDS Cell and LED Display Circuit |
Daylight Early Bird |
AM Radio Station |
| Diode-Transistor Logic and with LED Display |
Intermittent Alarm Generator |
Operational Amplifier Radio |
| DTL OR Circuit with LED Display |
Comparator |
Aural Continuity Tester |
| DTL NAND Circuit with LED Display |
Basic Increase in DC Voltage |
Conductivity Tester |
| DTL Exclusive OR Circuit |
Constant-Current Source |
Transistor Checker |
| Transistor NOR Circuit with LED Display |
Integrating Circuit |
Sinewave Audio Oscillator |
| Transistor Flip-Flop Circuit |
Schmitt Trigger Circuit |
Low Distortion Sinewave Oscillator |
| Transistor Toggle Flip-Flop |
Noninverting Two-Power Supply Amplifier |
Twin-T Audio Oscillator |
| Transistor-Transistor Logic Buffer Gate |
Inverting Two-Power Supply Amplifier |
Pulse Oscillator Tone Generator |
| TTL Inverter Gate |
Noninverting Single-Power Supply Amplifier |
Audio Signal Tracer |
| TTL AND Gate |
Two-Power Supply Differential Amplifier |
Radio Frequency Signal Tracer |
| TTL OR Gate |
Tone Mixing Amplifier |
Square Wave Audio Oscillator |
| TTL Exclusive OR Gate |
Power Amplifier Using Operational Amplifier |
Sawtooth Wave Oscillator |
| TTL NOR Gate |
Voltage Controlled Oscillator Circuit |
Rain Detector |
| TTL Three-Input AND Gate |
Operational Amplifier Buzzer |
Water Level Buzzer with |
| TTL AND Enable Circuit |
Burglar Alarm |
Operational Amplifier |
| TTL OR Enable Circuit |
Hand-Operated Sweep Oscillator |
Metal Detector |
| TTL NAND Enable Circuit |
Falling Bomb Sound |
Water Level Alarm |
| TTL R-S Flip-Flop |
Emergency Siren |
Three-Step Water Level Indicator |
| Electric Woodpecker |
Toggle Flip-Flop Circuit Made from NAND Gate |
First Aid Siren |
| Musical Tempo Generator |
Flip-Flop Multivibrator with LED Display |
Crystal Set Radio |
;)
