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DIY T-Amp user/diyer come here :), TA2024 complete build board diy

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jazzy939
post Aug 29 2008, 10:36 AM

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wui223,
Yes. Next door infact tongue.gif
No.Have NOT seen those at all, maybe because it's not in my list or in my mind. They may have it but I can't be sure. Sorry bro.. laugh.gif


QUOTE(wui223 @ Aug 29 2008, 10:32 AM)
Jazzy939: Is it the one near NIXIE? i miss JP alot, long time didnt go there ald. Might be off topic, u know any shop in JP selling 12AU7? A tube preamp match with T-amp might be a good idea smile.gif
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jazzy939
post Aug 29 2008, 10:54 AM

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ongbs,
Thank you for the info! I was not aware of this brand at all! Looks like I really got lucky eh! laugh.gif
I have seen other brands in JP.. all running at 3 figures prices! shakehead.gif

I thought earlier wanted to use some spare PC PSU for this purpose, glad that I didn't. Won't do justice to our little marvel.. biggrin.gif
Oh BTW, it came with a ONE YEAR Warranty! thumbup.gif

Just got some info/data on the model that I bought. Interesting!
The MTBF is 408.3K hrs minimum!
Inrush current max is 36A for 230VAC.
78% efficiency.
Max ripple and noise is 100mVp-p
Voltage adjust range 10.8~13.2V
<--- looks like I will be setting to the MAX. yeay! laugh.gif
Load regulation +- 0.5%

What do you think of these specifications?


QUOTE(ongbs @ Aug 29 2008, 10:42 AM)
xtorm, jazzy, this Mean Well is quite a famous Taiwanese brand (value to money) in industrial grade SMPS, that is why I said RM55 is a bargain.

This SMPS should be industrial grade, not just mean for DIYers, I used some of their 24V SMPS in industrial PLC control environment back to 1996,
working fine in 7/24 non air-cond and dusty environment (even in India) .... smile.gif

Those cap palang PC PSU really can't compare with this brand.

http://www.meanwell.com/profile.html
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This post has been edited by jazzy939: Aug 29 2008, 11:12 AM
jazzy939
post Aug 29 2008, 11:20 AM

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ongbs,
10 years! I believe it can go another 10 years liao! rclxms.gif
Yes, I have noticed. Just downloaded the manual/datasheet from the website. Thanks for the link! tongue.gif

Alamak, jealous lah tengok itu MD deck... I 'almost' bought one a while back. When I came back to the shop, it was gone! sad.gif

Yeahh! Value for money I'd say! Just like our T-Amp! rclxm9.gif

QUOTE(ongbs @ Aug 29 2008, 11:14 AM)
jazzy, this SMPS I kept for around 10 yrs liau tongue.gif
it is 24V 2.1A version, close to 200 bucks that time.

BTW, note the "V Adj" trimmer? It can be adjusted around 10% of the output voltage (11V to 13V+)  thumbup.gif

added:

some of my audio gears for T-amp test biggrin.gif


Added on August 29, 2008, 11:15 amhaha, jazzy...you managed to dig out more info about this little germs liau tongue.gif
worth buy huh? biggrin.gif
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jazzy939
post Aug 29 2008, 12:03 PM

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ongbs,
The only thing that I remember about the deck is that the model number have 555.. tongue.gif
It was at ONKING, Sunway Pyramid.. a long time ago ler.. hehehe biggrin.gif Was going for RM500... cry.gif

10 years never powered? doh.gif You sure can still 'ON' meh? tongue.gif

Yes.. I think the shop must thank us and give good discounts on our next purchases.. brows.gif

Damn.. I can't remember the name of the shop! shakehead.gif

QUOTE(ongbs @ Aug 29 2008, 11:24 AM)
which MD deck you saw huh? maybe just sapu by me  doh.gif
Will, I like MD due to its durability (all MD discs c/w plastic case so no scratch issue, i just pop in and out, even just throw around in the glove compartment in my car).

That 24V MW SMPS with me 10yrs without power ON, still virgin brows.gif  brows.gif  brows.gif  doh.gif  doh.gif  doh.gif
May dig out another one or two units more, if my wife didn't throw it away lah!  sweat.gif


Added on August 29, 2008, 11:27 am
walau, I think the towkey of that shop must "thank" jazzy and myself for highly praise of this smps tongue.gif
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jazzy939
post Aug 29 2008, 12:05 PM

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Y.C.,
I can't remember it off hand.. need to search my datafiles in my grey matter somewhere.. laugh.gif

Will revert..

QUOTE(Y.C. @ Aug 29 2008, 11:19 AM)
jazzy,

Could I find out name of that particular shop from you?  notworthy.gif
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jazzy939
post Aug 29 2008, 02:35 PM

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ongbs,
This is certainly good news!
Then can get the 1.3A SMPS for a mere RM38! thumbup.gif

QUOTE(ongbs @ Aug 29 2008, 02:32 PM)
I try to blast hard now with the FS speakers, damn, current draw hardly exceed 1000mA tongue.gif
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jazzy939
post Aug 29 2008, 02:56 PM

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More news!

My first prototype of the toroid inductor is ready!
See attched pix.. that’s my spanking new LCR meter showing the reading of 10 (uH) laugh.gif


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jazzy939
post Aug 29 2008, 03:05 PM

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Excellent! thumbup.gif
I'll get the 1.3A SMPS next, for the balance of my T-Amps tongue.gif

QUOTE(ongbs @ Aug 29 2008, 02:49 PM)
I blast at damn high level...we hardly drive to that level for normal listening condition.
So 1.3A should be enough provided you got enough uF  brows.gif  brows.gif  brows.gif
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jazzy939
post Aug 29 2008, 03:07 PM

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I've got to make 3 more! sweat.gif
You want to give me a hand? wink.gif

QUOTE(ongbs @ Aug 29 2008, 03:04 PM)
kasi test....kasi test....kasi test....kasi test....  coils lah doh.gif  doh.gif  doh.gif  tongue.gif
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jazzy939
post Aug 29 2008, 03:14 PM

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Thanks for the compliments! blush.gif
No worries.. I'm on my 2nd. unit now.. tongue.gif
I'll give you a shout when the 'orders' start to 'pour' in.. laugh.gif

QUOTE(ongbs @ Aug 29 2008, 03:09 PM)
"I will give both hands plus two legs" if you post to me for a test tongue.gif
btw, good workmanship bro  thumbup.gif
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jazzy939
post Aug 29 2008, 03:15 PM

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Why go big when "Less Is More"? laugh.gif

QUOTE(xtorm @ Aug 29 2008, 03:12 PM)
eh btw,,,

you both of you hav 4 boards...why not buy a bigger amp unit...hahaha

Y.C. on his way to get his baby tongue.gif
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jazzy939
post Aug 29 2008, 03:54 PM

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Don't lah be jealous.. we're just 'lucky'.. brows.gif

I did measured the resistance of the inductor.. have a guess!
It's 0.2 Ohm! thumbup.gif

Here's the pix of the second unit.. I'm getting better laugh.gif


QUOTE(xtorm @ Aug 29 2008, 03:24 PM)
hahah i mean smpslah...aiyo

yaler i very jealouslah, you guys all enjoying the t-amp...me working...hmmm

jazzy, waiting for your good result!! orders will come pretty soon tongue.gif once you have good result...

resistance is near 0? mine original coil around 1.4 ohm
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jazzy939
post Aug 29 2008, 05:20 PM

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wui223,
I've already made one.. laugh.gif

But thanx for the link.. gave me new 'ideas'.. brows.gif drool.gif

QUOTE(wui223 @ Aug 29 2008, 05:10 PM)
This post has been edited by jazzy939: Aug 29 2008, 05:54 PM
jazzy939
post Aug 29 2008, 05:55 PM

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Y.C.,
Did you managed to locate the shop or get one? tongue.gif
Yes. PM received and responded. smile.gif

QUOTE(Y.C. @ Aug 29 2008, 12:58 PM)
It's alright, jazzy. I'd be going down town during my lunch break and was thinking of getting one in JP afterwards since I'm also getting my T-amps from xtorm later today. Just would need to walk into more shops and hager price with each of them. Hey, I thought you just got them yesterday?  shakehead.gif

BTW, I already PMed you details of our order of Vishay BC caps/resistors with Farnell.
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jazzy939
post Aug 29 2008, 05:58 PM

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Great! Please revert with reports!! pix? tongue.gif

QUOTE(ongbs @ Aug 29 2008, 03:07 PM)
Actually my Fluke recorded max reading of 912mA  thumbup.gif

I got 1A to 1.5A SPMS, gonna test it later smile.gif
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jazzy939
post Aug 29 2008, 06:50 PM

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Y.C.,
Now that you see physically the little marvel.. it's unbelievable, right? tongue.gif

When I was there, there were NO young skinny little gurl.. how come ah..? hmm.gif tongue.gif
Yes.. I use a pencil point adjustable soldering iron for that.. don't really like SMD stuffs.. and the board is double-layered!

Happy hunting tomorrow!!!



QUOTE(Y.C. @ Aug 29 2008, 06:26 PM)
Jazzy,

This afternoon was too rush; ran a few errants nearby my office area and it's already too late to go KL, so going down to JP tomorrow instead. Xtorm told me you indicated the shop is near Nixie and he asked me to be on a lookout for a young and skinny Chinese girl and that's the shop.  brows.gif

Picked up my T-amps from xtorm this afternoon. Wow, the actual board is so small ya; don't know whether it got enough space for us to fit in those caps and resistors we ordered or not? And not forgetting the extreme care we need to exercise with the soldering iron.  doh.gif

Thanks for concern.  biggrin.gif


Added on August 29, 2008, 6:29 pm

ongbs, hehe, scared others steal your kungfu ler ?  tongue.gif
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jazzy939
post Aug 29 2008, 06:59 PM

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ongbs,
No I have not as I have NOT removed any of them, yet. tongue.gif
Will do that probably tomorrow. It should be 10uH, right?

QUOTE(ongbs @ Aug 29 2008, 06:55 PM)
jazzy, have you measured the original inductors with your new shinning meter? in uH?
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jazzy939
post Aug 29 2008, 07:03 PM

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Ok, will do!
According to the evaluation board schematic, it's 10uH... no worries! tongue.gif

QUOTE(ongbs @ Aug 29 2008, 07:01 PM)
pls measure it and "report" here tongue.gif
not sure it is my inductance meter problem or what...my meter read 5uH.. doh.gif
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jazzy939
post Aug 29 2008, 07:15 PM

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Y.C.,
My earlier test using the SMPS is quite similar to the laptop/notebook type PSU. Housed in a black plastic casing, it can be placed outside, out of sight! biggrin.gif
I have yet to compare, however the one that I bought is 'industrial grade' as ongbs put it..

Question is, can you get the black, good looking plastic SMPS as cheap?

This post has been edited by jazzy939: Aug 29 2008, 07:19 PM
jazzy939
post Aug 29 2008, 07:34 PM

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Not at all Y.C.
I saw a fine great looking ANTEX going for RM55, a 25/30 watter. Will suit the job fine! biggrin.gif
See attached pix. There is also an 18W version! tongue.gif
The HAKKO that I got is more expensive that that! It's a 20w/300W(pistol grip, push button for high temp application, ie the 300W).
May be later I can show you my really fine tipped soldering iron that uses 12VDC. Extremely suitable for SMD works.. wink.gif


QUOTE(Y.C. @ Aug 29 2008, 07:25 PM)
Thanks, Jazzy.

Yes, the little marvel looks much bigger in pictures and considering this small little fella to reproduce fine sounding music, it's quite unbelievable. I thought the soldering job was a 'lil rough and not refined but for RM55, I guess it's no issue here.  smile.gif

Talking about soldering iron, I'll need one too as my made-in-China elchepo soldering iron was last used 5/6 years ago and it's now full of rust. Will buy a finer tip soldering iron just like you.
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This post has been edited by jazzy939: Aug 29 2008, 07:36 PM


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