My second pot from JP fail again..1 channel is louder than the other unless I really crank up the volume that both will be balance. Now the T-Amp is left aside waiting for Alps pot to be in..

Apart from the two caps, what minor mods can be done to further improve the sound? Getting bigger resistors/caps to replace those SMD will make the T-Amp look ugly

I both all these pots from Jln Landak. 3 pots from RE, only 1 works. 1 from Nixie and doesn't last..ALPS is here in Malaysia but not with me

I will not get any box so soon as I have another project (CD63) that need to finish up. Therefore look is quite important when the amp is still naked. I will be bring this amp to test with my client (also hifi kaki) setup in Penang next month and I sure don't want to scare him away with all those resistor sticking out On SQ, I had my friend tested Y.C. T-Amp many weeks ago (thanks Y.C.) and he finally got 1 for himself. He is a very satisfied man now that he find our Malaysian singer Nora much livelier.

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Added on November 28, 2008, 11:11 pmGabanyayaya, instead of multimeter, we should bring bro jazzy to buy parts from JP/JL(andak)
I think for my case, it is quite difficult to measure with an analog multimeter. 50K pot and if there is a slight few hundred ohm diff, analog multimeter might not be able to detect it. The only DMM I got is Rapport and I sure won't bring it there as it will make me look like meter reading man from TNB

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Added on November 28, 2008, 11:15 pmAs mentioned before, the quality is so much diff during my college days...I wouldn't mind paying extra if the quality is good. Hope Farnell was like last time where to stock the parts locally.

This post has been edited by cyl1000: Nov 28 2008, 11:15 PM

Initially the pot from Nixie is ok but after sometime, the problem start. I've even tried a little contact cleaner (I thought my environment is very dirty ) but still the same...Like I say before, no need DMM, just bring you along

Actually the price I'm paying for JP/JL pots is too good to complain but when the pots keep failing, just imagine the frustration...though I'm unlucky with the ports but I'm lucky that I found T-amp

For the caps, I've use the recommended MKT1822 and Panasonic FC 470uF. The SQ, not really run in yet and it is left idle as the L+R channel is not balance now.

For discrete upgrade, can you guys comment more on its sonic improvement? How much different does it make with SMD..Do you like it with discrete? Since its picking up noise, the result would be different for each of us...if it is not to our liking, hard to revert back unless spend another RM55 and time to run in the T-amp again...

I've just ordered 3pcs from Xtorm last few days
Looks like there will be more t-amp owner out there...

due to the simplicity of the amp,there is not much to tweak unless you do something on its peripherals like pre/buffer and a nice casing like yours

It looks great but I was wondering you must have use some sort of "surgery" instrument to put up all these puzzles (caps) so close together

ah..finally got my Alps Blue Velve pot..do a quick soldering and tested for 30mins..the sound is much more better than JP pots. I have bought my casing and will do some drilling after Christmas and then send to repaint

The Alps pots is not that heavy as compare to JP pots but it sure make a difference compare to those cheaper pots. I have an 10yrs++ Aura that is using Alps pots and it have never give me problem

I think its just a matter of pure luck as the pots I've bought from JP is always giving problem. I hate to buy spares as I've a bunch of other components left in the drawer and not being used. And for sure I will not bring a DMM to JP to buy parts

Since the T-amp is up and running now, its time to work on the casing..still thinking for the volume knob to use...

I just got 1 of those alum casing from Nixie and plan to send it to be respray..maybe like Ipod bone white

Thought of anodized but hard to get a good job done..send to a shop at sunway before but they just did a "chin chai" job. As for power LED, thought of getting a circular LED light pipe to put around the volume knob. So far, no luck yet from Farnell, RS or Futurlec . I will have to get these parts ready before I can proceed to drill and then spray.

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Added on December 28, 2008, 6:26 pmI got the big casing measuring 253x167x87. Hmm...what do you mean by the slimfit RCA n binding post? Have you tested the pots? Which shop you buy from? One of my friend JP pot is failing Have to help him get a temporary pot.

BTW, anyone can help to source for a circular LED light pipe???

This post has been edited by cyl1000: Dec 28 2008, 06:26 PM

Sorry..forget to reply I will go to your office on Tuesday/Wednesday bout noon..maybe collect from you then..thanks.

If you look at those midi hifi, some have lights illuminating form the volume knob (Y.C. JVC micro have it). I have attached a picture from another thread..looks something like this.


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I can't wait and have started on the casing. I have drill most of the holes for the RCA, volume control, speaker binding..for power switch, thinking to use round (push in to ON) or rectangular (push up/down). For the volume knob with LED, I've got a big knob from an old donor amp (Denon) and most probably drill 4 holes in casing but hide inside the knob. Use VR to adjust the LED brightness and hopefully will get the effect.

hee...hee...I'd not want to construct a voltage regulator for a few LEDs I will just use a variable resistor to do the job.. might not be easy to get the desired brightness but I think will be sufficient...

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Added on December 30, 2008, 6:28 pmJazzy is right that it will not work proper..just for me it is "proper" enough for my application..

Just got the Tocos pot (VR ) from one of the bulk order...damn..these pots are really mini..

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Added on December 30, 2008, 6:32 pmTook out some pots from an old Denon amp with 250K and I think will be sufficient to dim the LEDs. Got some big transformers with shielding but the voltage is too high for t-amp..

This post has been edited by cyl1000: Dec 30 2008, 06:32 PM

Actually I cannibalize a Denon and Onkyo amp yesterday and got some parts out to use. I have change one of the pot for my friend's ailling JP pot. These pot still work well and I'm confident that I wont encounter same problem as JP pot (maybe I'm in bad luck). As for the transformer, it looks big and "solid" and would be a waste to throw it away..the smoothing caps is rated 50V, so I think the transformer secondary voltage should be around 40V?? Lets see if there is any use for other future projects or just keep in store...

Will have to wait till I finish with the t-amp casing and also another t-amp with discrete...

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Added on December 30, 2008, 7:14 pmI've seen some China Belden too

This post has been edited by cyl1000: Dec 30 2008, 07:14 PM

Hi guys, Gong Xi Fa Cai..been busy with my newborn baby and now only finish 90% of my T-amp in a proper casing..attached is the picture (taken with camera phone, not so clear). It is spray painted in champion white (that is the color code I was told) as my friend do not have the pearl white which I initially planned for. I've not touch up the power button yet.. For the blue LED at volume knob, its a bit too dim, maybe have to get a brighter blue LED as I thought the low brightness type is sufficient...


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No..send to Honda workshop and they use the Type R white....but I really would prefer pearl white...maybe add in a red color line at the volume knob would look sportier

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Added on February 1, 2009, 11:43 amBought the alum case from Nixie. The difficult part is to get a nice volume knob so I salvage from an old Onkyo amp..but I still need to get allen screw and painted it white to replace those ugly philips screw..

This post has been edited by cyl1000: Feb 1 2009, 11:43 AM