You can use this 5V to 12V converter circuit to easily get 12 volts from a 5V similar source. This is based of the theory that inductor holds current and […]
Setup diagram of an Alfa branded 12 Volt 20 Watt CFL kit
This CFL lighting kit is available from a reputed brand alfa, which is known for it’s circuits in applications of inverter like products. We get a good stable circuit from […]
High Performance LA4446 Stereo Audio Amplifier Circuit
LA4446 is of similar series IC as LA4440, but it is meant for dual or stereo 5.5Watt RMS outputs. While 4440 gives 6Watt outputs at dual mode, this gives almost […]
Miniature USB powered amplifier circuit for Laptops
There’s been a strategy in market of buying USB powered speakers for laptops. These speakers usually drives power from one available USB port and inputs audio signal from headphone port, […]
Use old 6V sunca charger battery for LED lighting
Many of us have 6Volts emergency light units in our house. The batteries there are of 6Volts 4 to 4.5AH. These batteries are SLAMF battery (Sealed Lead Acid Maintenance Free), […]
Easy Loudspeaker circuit for telephone
This below circuit is a easy handsfree telephone receiver system. This doesn’t have dialing circuit so, it’s not a total phone replacement circuit, but it’s just only a loudspeaker system […]
Capture RF energy from environment by using a stick antenna
There are a lot of RF energy(unused) in our environment, by TV , radio channels, etc. We can capture energy of any wave by tuning same frequency resonating coil, but […]
The Simplest TV transmitter ever made
We have earlier discussed how to make the simplest FM transmitter, now it’s time to make a TV transmitter. We can broadcast our DVD playbacks, etc to our neighborhood area […]
Simple 10 Rupees microphone for PC, Skype, VoIP
With addition to a webcam in a PC, it is required to have a mic also. If we have headset cum mic, then no problem, but if we don’t? Well, […]
TDA2030A Amplifier Circuit used in home theaters
TDA2030A or TDA2030 is a well used class AB audio amplifier IC. TDA2030A amplifier circuit is mostly used in nowadays home theatre systems for it’s some good features. Small size IC(package […]
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