yeah solder iron. But is it hard to understand those resistor stuff, + - or -+ those stuff ? Or there's already have guides and tips on the pcb it self.. just put it rite and solder it ? I dunknow any about the calculation of the resistor Ohm. ~

not hard.

i started dabbling after SPM, without any prior knowledge in electronics.

All you need is google plus obsession.

Hah, cool ~ Im now only 16

Resistor colours got online calculators

http://www.dannyg.com/examples/res2/resistor.htm

This is a good books for electronics :

http://www.amazon.com/Make-Electronics-Dis...t/dp/0596153740

From basics components, to soldering to integrated circuits (Chips)...

Or free online resources on electronics on my bookmarks :-

http://www.ibiblio.org/kuphaldt/electricCircuits/index.htm
or
http://www.allaboutcircuits.com/

Wow, Thanks alot !

Check out Dave Jones' EEVBlog

And then there's Youtube of course.

Actually I did my first rewiring of IEM, due to the IEM speaker driver so kecil... Make till I so hard to solder, at last I accidently soldered the cover. Now hardly close it back so I only use cellophone tape and stick it back.



At least I tried, Rm200 IEM like tat play with it xD

It's hard to solder because of the enamel layer.

You'd have to crank the heat up and melt the enamel layer first so you expose the copper wire which sticks better.

U mean dual SOIC8 to DIP8,with 2 x AD797BRZ on it??

This post has been edited by Leolabs: Jul 11 2011, 10:19 AM

yes do u have any idea?

Regarding the AD797,suggest you order from Element14 (formerly known as Farnell).

http://my.element14.com/analog-devices/ad7...soic/dp/1651308

About the 2xSOIC8 to DIP8 adapter,you can try Ebay

http://cgi.ebay.com.my/2X-Mono-Dual-Opamp-...=item3cb9f7f909

Anyone did a car audio amplifier before? Anyone has the schematic diagram?

There car audio amplifier mostly a same only there are dc-dc converter, where from normal 12-18V car to +- 60V. To fine a well working dc-dc converter is the most challenging in making a car power amplifier.

You also can find a power amplifier circuit that using single rail 12v with output in bridge mode but the RMS will be much lower.

I am sorry i cannot find anymore my car audio power amplifier schematic since my pc harddisk crash. (dumb me not do backup). I hope that this will help you. Find a 12v converter that output at desire voltage and combine with power amplifier. and you will have a car audio amplifier.

There are some kits that are based on those TDA chips I used to see in Jalan Pasar,KL. 12VDC working voltage very suitable for car audio applications. I do not know if those kit amps are still being sold now.

Check out this link I found:

http://www.scienceprog.com/diy-4x22w-car-a...sed-on-tda7384/

nanhifi, too bad your hard disc crashed bro.. there goes all your collection of circuits..

may i know where u guy get your input selector ? around how much ?

Those simple rotary ones are available in Jalan Pasar KL. Few ringgit.
More elaborate/sophisticated ones are from online suppliers.. ebay especially.

ebay 1 not cheap leh, see liao all need almost rm 100 ~~ jia lat nia.

Around 100 you can grab the input selector with relay kits already

looking around for amps to pair with my headphones, came across a few DIY type, hand itchy feels like wanna take out my iron.

SOHA2 looks great, or simply a starving student millet should aid my itch. Anyone did any of em' before ?

This post has been edited by mercury: Aug 6 2011, 10:21 PM

To find out the resistance value of a resistor, i just use a multi meter to measure it's resistance.
Isn't that easier, faster and error free compare to reading it's colour and calculate the value?
normal resistor is enough for audio circuit, unless you are doing the instrumentation circuit than you need metal film resistor which has lower +- means its value is more precise).


This post has been edited by tanhks: Aug 7 2011, 03:21 AM