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DIY T-Amp User V2, TA2020 AIR CORES!, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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March05
post Dec 12 2008, 12:39 PM

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QUOTE(jazzy939 @ Dec 12 2008, 12:01 PM)
.. although it looks like those components are like after being hit by a tsunami! laugh.gif
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You T-amp modders are really scary. blink.gif

I'm not putting my T-amp through that kind of surgery!!!!!! sweat.gif
March05
post Dec 12 2008, 01:06 PM

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QUOTE(bsl555 @ Dec 12 2008, 12:42 PM)
...won't hurt the pocket to acquire another one for another hack session.  biggrin.gif
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For me, it's not the money.....I just can't stand the sight of too much molten solder. blush.gif
March05
post Dec 13 2008, 03:14 PM

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QUOTE(paskal @ Dec 13 2008, 12:21 PM)
it burned 2 of my boards demmit. that adapter is now history.
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paskal, how badly burnt is it?

Pardon my lack of electronics knowhow...but I see this smd capacitor C5 in the 12v+ circuit leading to the TA2022 ic. Wouldn't this burn out first?
March05
post Dec 27 2008, 11:34 AM

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QUOTE(cyl1000 @ Dec 27 2008, 08:40 AM)
its time to work on the casing..
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The casing seems to be the most difficult to source compared to all the other modding components...and I'm still stuck here. I absolutely refuse to start work on my TA2022 without acquiring a nice looking casing first. tongue.gif
March05
post Dec 27 2008, 02:16 PM

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QUOTE(cyl1000 @ Dec 27 2008, 12:58 PM)
I just got 1 of those alum casing from Nixie...
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Which one did you get? I went there early last month to get one, but they had sold out the RM28 one. I picked up the almost all the other parts....RCA sockets & the binding posts (I got really slimfit ones! brows.gif ), white and blue LEDs, the famous jp volume pots - they have plenty of both linear and log types, you have to `debate' with them on the use of these before buying or they'll just give you the linear ones.

So I only need to order the Vishay/ERO MKT 1813 2.2uF 63V caps from Farnell, and it's just the casing that's missing.

cyl1000, please show us the pics after the respraying. I might copy you. brows.gif


March05
post Feb 10 2009, 08:22 AM

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Anybody noticed that Nixie has an `integrated' TA2024 with tube buffer preamp CBU on display and for sale? Price: RM1,5XX.00

March05
post Feb 10 2009, 11:28 AM

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QUOTE(jazzy939 @ Feb 10 2009, 11:10 AM)
What do you think of the price?
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At 30x the price of our DIY unit..... sweat.gif sweat.gif sweat.gif

OK lah, maybe after adding the cost of the toroid, the tube preamp stage, the casing, miscellaneous parts, trouble shooting, + assembly labour, not too bad.

Did you manage to take a peek under the skirt bonnet or get an audition?
March05
post Feb 10 2009, 12:11 PM

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QUOTE(jazzy939 @ Feb 10 2009, 11:36 AM)
I certainly did! tongue.gif Not entire impressed by the sound though..
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jazzy bro, don't judge them by your high standards lah. biggrin.gif mesti kasi chance sikit, ya?

Anyways, hmm.gif did one of you guys build it for them ah?

BTW I finally bought one casing for my T-amp. Same as the one you use for your VSPS, jazzy. Next, to order the Vishay caps from Farnell.....or has someone got some alternative spares to get rid of? I think I will start tinkering with my kit sometime between now and end of the year. biggrin.gif


March05
post Feb 10 2009, 12:50 PM

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Sure can lah...er....you order or I order? My kepala cpu's not working too well as usual....too much cheap booze over the CNY hols. blush.gif
March05
post Feb 10 2009, 01:20 PM

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QUOTE(bsl555 @ Feb 10 2009, 01:02 PM)
Hahah.. don't poison yourself with cheap booze..nanti short circuit.
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That's wot I told me wife too.....don't order no more root beer! Get the real stuff! biggrin.gif

BTW, I need some recommendation for a reliable digital multimeter....budget below RM200. High time I get a real DIYer's meter instead of using those cheap RM20 JP `Sunwa' discards. Maybe I will order from Farnell also lah.
March05
post Feb 10 2009, 02:55 PM

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Thanks, jazzy bro. I will keep an eye out for TENMA...but this name isn't very familiar to me. Where to get? JP?

FLUKE is way out of my league (or is it the other way round?). I don't wanna look like an engineer, since engineer I'm not.

Oh gosh, I just saw Farnell's prices for digital multimeters....vomit blood.

I'm looking for something easy to read (need big display fonts for this old man), reads usual stuff like DC & AC voltage, current, resistance, capacitance, accurate to 2 decimals,.......warm sound, solid mid-range, powerful bass, sweet treble, got PRAT, etc.
March05
post Feb 10 2009, 04:37 PM

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QUOTE(jazzy939 @ Feb 10 2009, 04:06 PM)
Heyyy, are we talking about DMM here?  rclxub.gif
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Oops sorry my mind wandered off again....was thinking of the type of sound I want from the T-amp after modding lah. Strange, I'm doing that (mind wandering, I mean) a lot nowadays..do you think it's Alzheimer's I'm contacting?

OK back to the DMMs...what the ****, my searches for digital multimeter on Farnell keeps showing up GOSSEN METRAWATT @ RM8XX. They're trying to squeeze me ah? How come you can find TENMA but I cannot? Ayoyo!

Sanwa is okay....still got a genuine 20 year old analog Sanwa in my toolkit. But finding it very difficult to read the thin needle, especially in low light. DMM is only the way to go.

Anyways, lessee...TENMA - 72-7735, RM200.74....seventy four sen can lah won't break my bank. Specs well within my requirements...great, shortlisted!!!
March05
post Feb 10 2009, 06:13 PM

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QUOTE(jazzy939 @ Feb 10 2009, 05:48 PM)
Alzheimer's is memory loss thingy.. you're having a  'wandering mind' syndrome! laugh.gif
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Not Alzheimer's? My word, that's a relief! My wife thinks wandering mind is tolerable lah. As long as it's not wandering hands, or wandering `something-between-the-legs'. wink.gif

Well, it's looking like the TENMA is the ONE. Thanks, that's another TT session IOU.

BTW the promised TT/TT session is still in the works...just need to fix a suitable date, any Feng Shui masters here?
March05
post Feb 11 2009, 09:46 AM

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QUOTE(LittleGhost @ Feb 11 2009, 09:06 AM)
There's a reason I wouldnt want to recommend the Flukes.
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Tell us, tell us lah! biggrin.gif

biggrin.gif bsl knows me well enough. Honestly, my wandering mind is now shamelessly swinging to the Sanwa CD880a. A huge difference of RM90 over the TENMA (that's a lot of teh tariks + satay thrown in brows.gif ) The Sanwa CD771 is eye catching....I like the huge display, but the price seems to be RM300++ in reality unless I'm looking in all the wrong places.

FLUKE 80 V series is worth drooling over, but completely out of my budget, I think. The 73 series unfortunately seems to have no capacitance measurement....(I need this, that's the one parameter I've always missed with my current multimeters).

Appreciate the feedback, folks. Maybe some of the other readers here are also in looking for DMMs, so they will also find good use of your suggestions.


March05
post Feb 11 2009, 11:17 AM

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QUOTE(LittleGhost @ Feb 11 2009, 10:13 AM)
I got my CD771 for Rm220 three years ago.  smile.gif EDIT: Should be even cheaper now.
You're getting it at the wrong places.
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LittleGhost, hokay, I get your reasoning on the value of the FLUKE stuff. I kinda like the higher accuracy of the FLUKES compared to the Sanwas, but it'll be overkill for a non-techie like me. However, if the price of a 80V series used unit is right...who knows, I might be tempted (I think more for the snob value of owning one rather than its function.)

So, now it boils down to either the Sanwa CD800a or the CD771. I think if I can get a new CD771 for RM200 or less, that's my choice. The backlight & larger display is right up my list of priorities. And it is a bit more accurate than the CD800a + seems slightly better featured.




March05
post Feb 13 2009, 07:59 PM

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Hi hi hi KenC, I forgot to thank you for the teh tarik treat the other day. A belated thanks, and for those DIY tips too.

jazzy bro, this bloke is already as insane as all you guys. laugh.gif


March05
post Feb 21 2009, 11:33 AM

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Oh no! not another one...I haven't even started on my TA2024 yet! Die lah like this.
March05
post Feb 21 2009, 11:54 AM

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gabanyayaya bro....no lah, I need a loooong vacation, and some fresh motivation. So when are you hosting the next TT session? wink.gif
March05
post Mar 5 2009, 11:07 AM

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cRazYee:i got a few dump question
March05: This is a good place as any to dump some dumb questions.

cRazYee: this T-amp is it works like DAC? is it the similar amp to Little Dot stuff?
March05: No.

cRazYee: I need an amp to amplifier output from my com to my Aego m
March05: My turn to ask a dumb question. Why? Your Aego m has already got a built-in amp, and your comp/pc has got a built-in pre amp output, right?
March05
post Mar 5 2009, 12:27 PM

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QUOTE(cRazYee @ Mar 5 2009, 11:26 AM)
yap, aego m got it's own amp, but still feeling something missing, cuz i hardly turn to high volume

i'm using Mcbook pro, the output is not as good..... and how do you mean by preamp output?

how i position 'T-amp'? It's like ordinary amplifier?
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cRazYee, it's unusual that you cannot achieve high volume using the audio output from your Mcbook directly to your Aego m. Are you sure your software volume controls are not set too low?

The internal sound card of your Mcbook consists of a DAC plus a preamp (a very low powered amplifier which boost the signal to a level which is acceptable to a `power' amplifier). The audio out socket of the Mcbook is linked to the preamp.

If you are interested in getting better sound quality.....use an external DAC (AKA external sound card). Sorry, this thread does not deal with that particular component of the sound system.

Yes, you are right...the T-amp is like an ordinary amplifier. It is usually positioned between the pre-amp and passive speakers.

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