Welcome Guest ( Log In | Register )

Bump Topic Topic Closed RSS Feed
19 Pages « < 7 8 9 10 11 > » Bottom

Outline · [ Standard ] · Linear+

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

views
     
ongbs
post Sep 1 2008, 02:33 AM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 1 2008, 01:18 AM)
My final version, the 1st board will be using 1uH toroid inductors. In bi-amp config will be driving the tweeters.
2nd. board that uses the 10uF input caps, will be driving the woofers.

Okay I remember now.. wink.gif Coming...  blush.gif

SO, you're gonna settle with balanced T-Amp configuration?  tongue.gif
*
Jazzy,

Look like I need to DIY donut as I saw some bare donuts that day blush.gif

If I remember correctly, that day you used 20 inches wire to make 10uH right?
Then the 1uH one need how long wire?

eh...where is the casing top and front covers huh? Look solid woh drool.gif drool.gif drool.gif

This post has been edited by ongbs: Sep 1 2008, 02:36 AM
ongbs
post Sep 1 2008, 04:26 AM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(xtorm @ Sep 1 2008, 03:44 AM)
wow so much copper wire needed for inductor?? hmm 1uh, i like airy but i dont wan it to be harsh, im using 2.2uf input cap...

wah nice pic and casing....what camera is tht  tongue.gif how much was tht casing?

wei ongbs, u also wana diy the toroids ah

wahsai new smilley rclxm9.gif  ketupat 2.gif
*
wah nice pic and casing....what camera is tht tongue.gif how much was tht casing?==> good questions tongue.gif
jazzy cepat cepat answer biggrin.gif

ya, maybe will try out that "donut' thing tongue.gif

walau why all smiley wearing songkok now huh? doh.gif

ahh...ic....Raya is near biggrin.gif

This post has been edited by ongbs: Sep 1 2008, 04:35 AM
ongbs
post Sep 1 2008, 06:30 AM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 1 2008, 05:27 AM)
xtorm,
the size of the wire will also affect the inductance, not to mention length tongue.gif
the wire that I used is 0.055mm dia. About a foot or 14/15 turns around the ferrite core to get ~1uH. biggrin.gif

You like the casing eh? I did too! That was bought by a friend in Bangkok!  rclxms.gif
Sorry to say, you can't get it here,locally.  cool2.gif

I am using a Nikon Coolpix 5700. Sharp eh?  brows.gif  See it's pix at the bottom. Worth every ringgit I paid for it!  tongue.gif

The casing is about 3000 Baht (do your own conversions)  laugh.gif (ongbs, I answered that, k biggrin.gif)

Hahaha, all these smileys wearing songkok one!  ketupat 2.gif Not even finished day one of puasa!  laugh.gif

Guys, what color LED would you use in that kind of casing? Please don't say BLUE. Almost ALL LEDs on every electronic equipments are BLUE.. now blue makes it look 'cheap'...  doh.gif
*
thanks for your reply bro...
well, as for the LED, I vote "white" but not too bright tongue.gif

The attached speakers is the FS that I blast with my T-amp, 1x8" mid, 2x8" woofer and a tweeter, weight over 20kh per unit smile.gif
note the kemek tweeter? thanks for my toy...dia yang kasi kemek doh.gif cry.gif



This post has been edited by ongbs: Sep 1 2008, 06:49 AM


Attached thumbnail(s)
Attached Image Attached Image Attached Image
ongbs
post Sep 1 2008, 01:52 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 1 2008, 11:56 AM)
ongbs,
not at all tongue.gif
Yep.. I thought so.. WHITE on the aluminium panel.. kinda 'sexy' wink.gif
The brightness can be controlled by the series resistor..
I have some white LEDs but it's the little ones size about 3mm. including the LED mount.. what I afraid is that the installation of the LED,
wrong position/size will affect the good looking panel. But without anything right now, the front panel looks so 'naked' and bland..  tongue.gif

Whoa.. those speakers are real heavy weights! 20kilos! Mine is only 18.. tongue.gif And boy, you've got an four drivers there.. wow! I can imagine what kind of sound you're getting!  thumbup.gif And all these driven by a 'tiny' little thing.. unbelievable ya!  laugh.gif

Yeah.. I picked that 'kemek' tweeter right away.. it doesn't really affect the sound right.. only 'sakit mata' tongue.gif
Actually the tweeter can be 'returned to normal'.. have you tried or you don't want to risk damaging it further? biggrin.gif

See attached LEDS pix.. decisions.. decisions... hmm.gif
*
yes, when 1st time i blast the FS with T-amp i also surprise! That little amp can drives it well tongue.gif

The kemek tweeters? I "returned" it before...but the next day when I got back home...my toy brought me to the tweeters and show me his "mod" doh.gif vmad.gif
I asked him why he promised not to press it in but still did it...you know what is the answer?
He said...."Pressed in" baru syiok mah! doh.gif doh.gif doh.gif shakehead.gif

It won't affect the SQ....only like you said...not so "friendly" to eyes :(

Well, as for the LED i will choose the right side for flush mounting, middle one look "classy" but got a "nipple" come out unsure.gif

This post has been edited by ongbs: Sep 1 2008, 02:31 PM
ongbs
post Sep 1 2008, 06:45 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 1 2008, 05:25 PM)
xtorm,
1 kg of copper will make thousands of inductors!  tongue.gif Nahhh, we just wanna make a few wink.gif

There's an error of 3% with handheld.. but we don't need a highly precised inductor,do we?
This is audio..this is T-Amp.. precision? biggrin.gif  Whats 1uH between friends.. laugh.gif

I am happy with my elcheapo LCR meter. 1uH difference wont make much difference anyway. You never know, 11 uH might sounds a little better than 10uH! Hahahaha.. we can only wish/dream!  cool2.gif
BTW, Its 1uH that I want, NOT 10uH. Too mellow n laid back..

So how come the stock inductor is reading 1uH onmy meter and 50uH on ongbs's?  shakehead.gif
*
So how come the stock inductor is reading 1uH onmy meter and 50uH on ongbs's?==>
I said b4, should be meter issue...

I believe our cheapo meter only can read certain inductor ranges correctly ... :(
ongbs
post Sep 1 2008, 08:03 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
WALAU...how come my donut so big huh??? doh.gif doh.gif doh.gif doh.gif doh.gif sweat.gif sweat.gif sweat.gif shocking.gif shocking.gif shocking.gif


Attached thumbnail(s)
Attached Image
ongbs
post Sep 1 2008, 08:18 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(xtorm @ Sep 1 2008, 08:12 PM)
wahahahahaha

knn buy wrong liao!!! laugh till 'peng' ah

peng as in fall off the ground...hahahaha
*
knn...lu so bad ah? shakehead.gif
ongbs
post Sep 1 2008, 08:27 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 1 2008, 08:23 PM)
Whoaaa! That is humongous! Where did you get that? Dunkin' Donutslaugh.gif
Thats about double my existing 'donuts'! tongue.gif
Can fit 4 of them on the board? shakehead.gif
*
i forgot to check yr donut/board ratio...
when went the shop other all tiny donut so i kasi hantam this donut king! whistling.gif

Come back and put the donut on board...WALAO sweat.gif sweat.gif sweat.gif
ongbs
post Sep 1 2008, 08:50 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(xtorm @ Sep 1 2008, 08:38 PM)
mine still the same
power switch at the back, nothing at the front

yea Y.C. i think having a holiday tongue.gif didnt see him post
*
My previous Ampzilla also no power switch wink.gif
LED location I will choose "middle" front, 1/3 near top smile.gif

Y.C go yam cha tongue.gif
All night long.... doh.gif

update:

hehe jazzy...the LED of that amp pic is quite close to my liking tongue.gif
but you haven't show us the 'face" of your casing wor....


Added on September 1, 2008, 8:57 pm
QUOTE(xtorm @ Sep 1 2008, 08:20 PM)
ahaha jokinglah...

very boring no 1 around here just now tongue.gif
*
hehe..i knew lah...only both of us "jog" a lot doh.gif tongue.gif

This post has been edited by ongbs: Sep 1 2008, 08:57 PM
ongbs
post Sep 1 2008, 09:01 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 1 2008, 08:58 PM)
I am thinking about that too! tongue.gif

Oh shucks! Forgot about that! Here it is! biggrin.gif

The empty space is for another board and 'some goodies' to be installed later.. wink.gif

*
walau jazzy...the 2 input caps look like 2 big relay to me tongue.gif

darn nice casing you got there bro! wink.gif

This post has been edited by ongbs: Sep 1 2008, 09:02 PM
ongbs
post Sep 1 2008, 09:09 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 1 2008, 09:06 PM)
hahaha.. I don't blame you!  tongue.gif
Best 'bass' yet from these caps..

Elsewhere in another thread, I downloaded some music for testing sub-woofers..
I was mazed,  ohmy.gif the T-Amp handled it very well!  thumbup.gif I was teribbly impressed. biggrin.gif
*
what is the value and material of those caps?
ongbs
post Sep 2 2008, 09:59 AM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 2 2008, 09:56 AM)


Once everyone have completed their T-Amp casing, you think this thread will close/'die'? hmm.gif
*
too early to tell that bro...all depend on us smile.gif
ongbs
post Sep 2 2008, 12:11 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 2 2008, 10:11 AM)
We can make this goes on and on and on.. yes?  tongue.gif

There's always 'new things' that can be added.. brows.gif

BTW, Since using the 10uF input caps, I am experiencing a speaker 'thump' when powering the T-Amp.. Notreally that loud but sonically unconfortable.. I may install a speaker delay board, hence the space reserved in my casing..

No thumping experienced on the other board with 2uF input caps..
*
bro, mine with 4.7uF also got little "pop" tongue.gif
btw, your "donuts" got a little bit warm while powering/playing?
My donut king get warm even in standby mode sweat.gif
ongbs
post Sep 2 2008, 12:25 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 2 2008, 12:19 PM)
Eh? You also? During power up? tongue.gif
Would you be interested in 'anti-pop' circuit? wink.gif

I don't know as it didn't cross my mind to check if the donut is getting hot or not. The tripath chip is kinda warm to the touch..  whistling.gif

Will go home and 'touch' them doughnuts.. brows.gif
*
no nedd add anti-pop lah...just a slight "pop" that I can live with tongue.gif
huh, TA2024 hot? Mine even blasting still able to touch with hand, I think around 40C to 45C max wink.gif

My king donuts are warmer than the TA doh.gif

This post has been edited by ongbs: Sep 2 2008, 12:25 PM
ongbs
post Sep 2 2008, 12:43 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 2 2008, 12:36 PM)
ongbs,
I think because your donuts are kinda 'extra large' size! hahaha laugh.gif

I am going ahead with my anti-thump project.. not comfortable lah that thump sound.. hand also itchy to do some soldering works.. tongue.gif
*
hehe...what to do...king donuts mah tongue.gif

It do cut some high end frequency but others I can't tell yet coz myself also not sure the SQ became better or worse sad.gif
Damn...me jealous you got a pair of sensitive ears now doh.gif laugh.gif

You may solder anything else but not your own hand whistling.gif

This post has been edited by ongbs: Sep 2 2008, 12:52 PM
ongbs
post Sep 2 2008, 01:57 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 2 2008, 01:19 PM)
Just have a flash.
I want to put a PPM(Peak Programme Meter) on the front panel..
similar to ones used by Technics.. nice huh? tongue.gif
*
show the pic of the actual meter first tongue.gif
That Technics meter look kinda big, can fit your casing?

poto mali... laugh.gif

This post has been edited by ongbs: Sep 2 2008, 02:03 PM
ongbs
post Sep 2 2008, 08:09 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(gabanyayaya @ Sep 2 2008, 07:13 PM)
I think you need a soft start la....to be KIC put a mentol bulb between power lines and the T-amp
*
better not as the bulb will consumes extra power and generate more heat...
cause some voltage drop too tongue.gif

This post has been edited by ongbs: Sep 2 2008, 08:14 PM
ongbs
post Sep 3 2008, 11:42 AM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(xtorm @ Sep 3 2008, 10:08 AM)
yes, if you can come out with an autocad drawing then it will follow tongue.gif

haha 8...hmmm, goto see if i can sell this as an amp tongue.gif haven got the chance to go my friend place
*
price lower boh? whistling.gif


Added on September 3, 2008, 11:45 am
QUOTE(jazzy939 @ Sep 3 2008, 10:53 AM)
That's not a big problem.. tongue.gif

Why don't you sell a 'complete' package?
Starting with the Basic model, no mods, right up to an Enhanced model with all the goodies? Ready to PLUG n PLAY!  brows.gif
I think there is a market for this... wink.gif I'll just take 10% commission for this idea..  laugh.gif
*
aiyo bro...you left me behind huh? cry.gif
15% now, 10% for jazzy, share me 5% will do rolleyes.gif




This post has been edited by ongbs: Sep 3 2008, 11:45 AM
ongbs
post Sep 4 2008, 01:02 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
hehe...jazzy. me still busy with donuts, the "donut king" already out...way too big! doh.gif
Will update when I "hear" the diff tongue.gif
ongbs
post Sep 4 2008, 02:06 PM

Who am I ?
******
Senior Member
1,083 posts

Joined: Sep 2004
QUOTE(jazzy939 @ Sep 4 2008, 02:04 PM)
So, what do you do with them then? Surely cannot makan... hahahaha tongue.gif

You're back to the original inductors or have have new donuts? wink.gif
*
sorry as my home oven not ready for this king donuts...tongue.gif
kasi tukar from the shop lah...

This post has been edited by ongbs: Sep 4 2008, 02:07 PM

19 Pages « < 7 8 9 10 11 > » Top
Topic ClosedOptions
 

Change to:
| Lo-Fi Version
0.0507sec    0.63    7 queries    GZIP Disabled
Time is now: 15th December 2025 - 02:19 AM