Nice talking to you too, xtorm.

No issue here with the shop with a young girl, I'll romp the whole of JP tomorrow.

Hmm, you definitely need a much better soldering iron than me, because you use it more than me. Don't be a cheapskate like me!

1.6A 12V SPMS tested and it can blast just like its elder brother 4A

Ahhh bro ongbs,
Good to know that!
Am definitely will be getting that 1.3A SMPS.. building one for 'junior' to play

huh..."junior"? small jazzy ah?

korek-korek can't find the 1A SPMS, just afraid it will cut-off due to initial current draw from caps....will korek again

This post has been edited by ongbs: Aug 29 2008, 11:07 PM

xtorm,
yes, I will do that soon. the copper wire that I got from my supplier is expensive!
To keep the cost down, I may resort to getting them coppers from busted psu's and what nots
Recycling!!!

Yes, those elcheapo won't last that long. The heat will erode the bit in no time.. it's worthwhile to invest in a good one that will last 'forever'

There's alot of online tutorials/infos..
You start with basic electrics and then move on to electronics.

Start here: Basic Electronics Online Tutorial
Basic Audio Amplifier
Basic Transistor Amplifier

This post has been edited by jazzy939: Aug 29 2008, 11:16 PM

Yep. sortof 'jazzy jr"

Wahhh.. so much 'junks' to korek2? Any junks you wanna get rid of?

used to have plenty of junks till my wife cleared out all my stocks :'(
I doubt you got extra place for old junk => me lah

i used to buy old transformer from junkyard, coz that time try to DIY transformer but....it remains as junk afterwards...

Moral of the lesson is: get those copper wire from junkyard if u dun need much. buying them from JP is not cheap as most of the shop sell in roll.

How much would an old transformer costs?

Yep. I found that out yesterday!
They go by the kilos!

Make sure you get the right trans as many are using thin copper wires, I believe thicker wires will give better results.

Btw, what is the function of that 4 inductors in our t-amp?

Just powered my SMPS!
min. voltage can be adjusted: 9.98
max. voltage can be adjusted: 14.73

Will connect to T-Amp after 'warming up'... need to 'memorized' the sound first..
Need to know before and after SMPS..

This post has been edited by jazzy939: Aug 29 2008, 11:47 PM

ongbs,
the inductor, with the required capacitor forms part of the filtering network to filter only the modulation which includes the audio signal.
Whats left after the filtering is the great sound we heard...
Therefore, without this filter, Class D would not work.

More stuffs to read here: Class D Amplifiers

This post has been edited by jazzy939: Aug 29 2008, 11:46 PM

Thanks for the link bro

Not at all...

Now auditioning of SMPS in session!

Will report soon.. few extra things I picked up (sonically)...

jazzy unless those old copper are thick and with low resistance, i rather pay for the new 1...

im eager to know the result man...hahaha

moon cake festival is near, so lots of really nice box out there....haha
like this 1 here, damn its nice, a 3 layer thinggy, each layer with 1 mooncake only! rm61....wahlau, but only the top layer got cover...and only able to fit 1 t-amp with all the mods i have....


i found a better alternative which can host 2 of my boards...hehe, with another compartment for power supply too kekeke cheaper too with more mooncake in it hahahahha, still i love the 1 above....

This post has been edited by xtorm: Aug 30 2008, 12:24 AM

bro, then after the mooncake festival you just threw the t-amp with mooncake box to my house can ah?

xtorm,
no worries! Substitues must be better, NOT less. We can't short change our super duper T-Amp, can't we?

Will NOT do the toroid inductor testing yet. The SMPS is progressing. Need to know and familiar myself with sounds first.
If too much mods are done at the same time, can't keep track whats affecting what...

Mooncake boxes for T-Amp casing eh? Thinking 'outside the box' eh?

This post has been edited by jazzy939: Aug 30 2008, 12:42 AM

eh your pillow put high high sleep and slow slow thinklah...wahahahahaha

yea must be better!! hahaha...some how the board came cheap at rm55, but mods are making it expensive!!! hahaha

yea love those boxes, kinda artistic with chinese words on it, and its a sleeper after some thinking, since i gona put in in my car for awhile, mayb ill substitut with this file holder...hehehe, rm6 only, 3 boards no problem, why 3? thts another story haha





and best of all they are easy to work with...

xtorm,
you're darn right!

file holder! pretty resourceful!

3: 1-forward speakers, 1-rear speakers, 1-sub-woofer?