Circuits DIY – Page 10 of 12 – Electronics & Embedded System news, tips and tutotials

Router UPS setup, battery in your ADSL modem or router

This router ups setup diagram, not an circuit diagram. It’s about a circuit that keeps your WiFi router or Broadband modem always on even in power cuts so that we can…

Arup March 18, 2011

Others

Winner of the 4GB pendrive giveaway contest.

Todays 15th March and the winner of the recent contest has been selected by a random pickup from list of contestants. The contestants who have blogged about this contest, had…

Arup March 15, 2011

Others

An easy to make voltage coupler(2X) circuit, for mini projects

This below circuit is very useful for our mini projects. To do mini projects we often need power supply of 3V, 6V, 12V etc. But a general 3-0-3 step down…

Arup March 7, 2011

Inverter PCB Making

Solar to 6V Batt to LED emergency light circuit

Today we discuss about a simple solar LED circuit. We know that solar panels comes from 12Volt 3watt to larger sizes. So, for storing energy, we need a 12Volt battery.…

Arup February 27, 2011

Others

How to save solder wire

We use a lot of solder for doing our projects, repair jobs, etc. But when we think simply that we replaced a part/component, we use new solder wire to solder…

Arup February 25, 2011

FM/AM

3 volt easy DIY FM receiver by TA2003 I.C

Here is a very easy DIY FM receiver circuit diagram. It is easy to build FM receiver circuit as the TA2003 IC used here, comes in easy DIP package. It’s…

Arup February 14, 2011

CFL/Tube Inverter

Emergency Tube light & Blinker Bulb with Fan

The originator of this circuit idea is Mr. Uttam Sadhukha, Howrah. He is a circuit designer, and works for helping hobbyists. This circuit is for 3in1 emergency light. For loadshadings,…

Arup February 11, 2011

Amplifier

Bass treble control without any IC, Transistor

This low cost bass treble circuit consists of some capacitors, resistors, and two T/C pot for BASS and TREBLE control. this circuit can be made without even a veroboard. You…

Arup February 10, 2011

Inverter

6 Volt 9 Watt Emergency light circuit

The author of this circuit is Mr Rajeeblochan Dheebar, Bankura. He is a circuit designer, and works for helping hobbyists. Here a total emergency light circuit is made. It has…

Arup February 9, 2011

Inverter Oscillator

Inverter Oscillator Board using Flip Flops 74LS112

I’ve found this board in many inverters, and it works great with transistor type inverters. I have tested this kit with Mosfets, but the gate triggering was low, and…

Arup January 31, 2011