Simple sound effects circuits

Peal from the transistor

This is Sound effects two tone circuit, which generally abound measure various both of kinds use IC frequency origin oruse the transistor. The sound will that is proportionate big depend on the value of R and C. For this circuit is will building sound of pale long tail or clock ancient sound.The work of the … Read more

Power on delay circuits and Surge protector without transformer

Power on delay circuit and Surge protector

This is Simple monitor turn on delay circuit, by use contact of relay acts as a switch. When entering an AC main to this circuit. The circuit will delay while Reduce the surge current protection with fuse. Read more

Solar battery charger with overcharge protection

This circuit is formed maintain one’s position voltage from solar cell with , shunt regulator circuit. For protect voltage not too until much destroy battery. Because of something charger too much. The D2 be for protect current flow turn back from battery during nighttime. The circuit maintains one’s position current the few , for feed … Read more

Analog VU meter schematics

Simple VU meter from multi meter

Let’s use two simple Analog VU meter schematics. If we take the amplifier connected to the speakers. It is very dangerous.If your amplifier has a higher power than the limits of the speaker. It may make a very bad sound. More important is the speaker and amplifier may be damaged.These circuits may help you! Simple … Read more