Hobby Projects - Insulation tester, LED Circuits, Meters.

Monday, August 11, 2014

GainClone Chipamp Audio Amplifier

Gainclone or chipamp is a type of audio amplifier made by do-it-yourselfers, or individuals interested in DIY audio. It is a design based on high-power integrated circuits, particularly the National Semiconductor Overture series.

GainClone Chipamp Audio Amplifier

The Gainclone is probably the most commonly built and well-known amplifier project amongst hobbyists. It is simple to build and involves only a few readily accessible, inexpensive parts. As an amplifier it is highly regarded by many in the DIY community.

GainClone Amplifier Rod Elliott (ESP)

"The amp is based on the Project 19 PCB, so uses a pair of LM3876 (or LM3886) power opamps, run from a ±35V supply. ...........The power supply is conventional in almost all respects. I used a 160VA transformer, a 400V 35A bridge rectifier, and a total of 20,000uF per supply rail - 4 x 10,000uF caps in all."

GainClone Chipamp Audio Amplifier

"The Gainclone amplifier has proved very popular with hobbyists since construction is straightforward and the resulting amplifier has an impressive performance specification.

A Gainclone for the PC Age

Most designs discussed online are aimed at audiophile applications. Here is a design for connection the a PC. It powers up and down with the PC and audio input can optionally be taken over USB."

Gainclone Monoblocks

"But it was the Gaincard that caught the imagination of audio diy-ers around the world and before long, copies of the Gaincard were appearing on internet sites and discussion forums. The Gainclone was born!"

incise.org: gainclone

"I had previously planned to build a small stereo amp using the amp6 kit from 41hz.com. After deciding I wanted a bit more power, I did some research and am now going to build a so-called gainclone amp based on the LM3886 chip."

"First, check out this 3-channel buffer amp Darcy made! It uses the chipamp.com LM3886 amp boards! Feel free to send pictures of your amp and we’ll show them off for you."

Friday, August 08, 2014

Electronic DIY Projects - Kalle Hyvönen

Kalle Hyvönen an electronics enthusiast from Finland has made many interesting. In childhood dismantling of all kinds of electronic devices was his main occupation. That is what makes him a Wizard Today.

Electronic DIY Projects from Dago

"Here’s a quick project I made in couple days or so. It is a push-pull step-down laser diode driver based on LT1683 SMPS controller chip from Linear Technology."

Switchmode laser diode driver based on LT1683

Switchmode laser diode driver based on LT1683

"I’ve been thinking about making a temperature logger for my room and my computer, I set on using DS18S20 sensors from Maxim because they’re common, cheap and overally pretty ideal. My computer is so new that it does not have a serial port "

USB-to-1-wire Adapter

USB-to-1-wire Adapter

"I also built a humidity sensor to my 1-wire network from a DS2438 chip and a HIH4000 humidity sensor."

Saturday, August 02, 2014

Talking Electronics - Colin Mitchell

An e-magazine for newcomers and everyone who likes to be involved with electronics., aimed at teaching electronics from the beginning with courses, tests and interactive questions.

Talking Electronics - Colin Mitchell

The thrust of the course is for you to be able to design your own circuits and eventually move into the wonderful world of electronics as a career.

Talking Electronics - Colin Mitchell

"There are many different types of power supplies, including batteries, plug packs, switch-mode supplies and a basic transformer and bridge"

The Power Supply - Basic Electronics

"However the simplest power supply consist of a transformer, one or more diodes and a large filter capacitor (electrolytic)."