This is for switching to different voltage’s bulb for proper lighting in different voltages. Sometimes the electricity supply goes in series line and merely gives some 90-100 Volts instead […]
Simplest Remote control checker
I have never found a such remote tester circuit that can be as easily made as this following. Remotes work with a digital signal which is nothing but 1?s & […]
Easy PCB making example with non-expensive materials
Here I demonstrate a easy PCB making with non-expensive materials. Normally homemade PCB requires Copper laminate board, Ferric chloride, Resist(Most hobbyists use Toner transfer that requires Hot Iron, PC and […]
Working of Digital Weight Scale
Today I bought a digital weight scale(DWS) from ebay.in at Rs.550(~12$). The item worked very well as promised. This is some kind of china imported piece. It’s a plastic body […]
CFL emergency kit PUSH PULL application 12Volt 18Watt
Push-pull applications makes a more reliable waveform output than that of a flyback converter. Thus it can be used. The below circuit have a push-pull transformer, with two Switching transistors, […]
6283 audio amplifier mostly used in DVD/FM
When A6283 audio amplifier is used in stereo mode, it can give output power upto maximum 10Watt after copuling. This amplifier is capable to run easily upto 4inch woofers. Normally […]
LA4440 amplifier circuit in Bridge mode
When LA4440 amplifier circuit is used in Bridge mode, it can give output power up to 19 Watt. This amplifier is capable to run easily up to 12 inch woofers. The main […]
Digital MP3 cum FM player kit setup
This type of ready-made MP3-FM kits are easily available in the market. The kit consists of one main board, one connector wire, one USB socket+wire, one remote with battery. […]
The simplest F.M transmitter ever made
This is the most simple FM transmitter circuit diagram you can ever find. This circuit is really cool and cheap to build. This FM transmitter circuit runs at low voltage, […]
Readymade emergency light kit setup diagram
Description: This is how a 12 volt 40 watt ready made emergency CFL/TL circuit looks like. This circuit consists of one power transformer, one 2N3055 transistor wit heat sink, […]