Toy Organ circuit using transistors
Let’s play a simple toy organ circuit. My daughter has interested in piano. Believe it or not, we can create a simple piano circuit by ourselves. Read more
Sound Generators
These circuits make you hear them work for many usages. Which there are:
Simple electronic drum circuit using MC14046
Simple electronic drum circuit project is an Instrument of this era really, various sound effects and many others, using digital IC and more Read more
High power siren circuit using CD40106 and TIP31, small and easy
This is High power siren circuit with small PCB size, using CD40106 and four transistor TIP31-TIP32 increase current to horn speaker 20W, 4-8ohm. , and Read more
Morse code generator circuit – simple code learning
This morse code generator circuit is suitable for learning basis of communication. Unbelievably, short and long tone can be decoded into letters and text. Read more
6 Simple transistor | police | ambulance Siren (audio alarm) circuits
Today I would like to introduce the simple and economical simple siren circuits. It is suitable for beginners. My son will gradually build this circuit onto the PCB layout. Look at below! 4 Circuits. Read more