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DIY DIY amp club V2, Post your DIY amp here

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jazzy939
post Feb 15 2009, 11:09 PM

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You got that right Lil'Ghost.. it seems easier wink.gif
ccschua
post Feb 15 2009, 11:09 PM

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how do get this professionally done ? any compnay in malaysia doing some quantities like 20 pcs?
jazzy939
post Feb 15 2009, 11:26 PM

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I vaguely remembers someone said there is... but NOT for the 'local' market... hence the absence from local scene...
lexmcad
post Feb 16 2009, 06:38 PM

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any 1 build class d amplifier b4? class d is efficiency tat class ab, but its less THD tat class ab?
jazzy939
post Feb 16 2009, 11:27 PM

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There's a T-Amp thread somewhere... have a look wink.gif


QUOTE(lexmcad @ Feb 16 2009, 06:38 PM)
any 1 build class d amplifier b4? class d  is efficiency tat class ab, but its less THD tat class ab?
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ccschua
post Feb 18 2009, 10:47 PM

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just wonder what happen to the empy B22 amp. is it burning with musics now.. hope the bush fire does not cause any to musics.
sakaic
post Feb 19 2009, 10:43 PM

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regarding the pcbs......my supervisor contracts this company ni Kampar or somewhere in Perak.

the minimum order i head is 700 bucks though
empire23
post Feb 21 2009, 03:46 AM

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QUOTE(ccschua @ Feb 18 2009, 10:47 PM)
just wonder what happen to the empy B22 amp. is it burning with musics now.. hope the bush fire does not cause any to musics.
*
Got the rest of the parts a few days ago, but then went down to Sydney and Canberra to jumpa kawan, lol 1200 km drive.

Just got back. Will start when i'm feelin hardworkin.
totally_skint
post Feb 26 2009, 11:50 AM

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Not sure this is the right place to post this question, but I'm looking to buy some soldering gear.

Question:
How much do the Hakko Presto 20-130W soldering gun cost in Malaysia?

I have seen on these pages going for around RM75-85 yet the shops are asking for around RM50.
Which is the correct price?

I also read there are fakes going around?
How does one not get cheated?

Thanks in advance.
jazzy939
post Feb 26 2009, 02:14 PM

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I got mine for RM58 from a RM65 displayed price tag.

There are look alikes but with a different name and much lower price tags..

QUOTE(totally_skint @ Feb 26 2009, 11:50 AM)
Not sure this is the right place to post this question, but I'm looking to buy some soldering gear.

Question:
How much do the Hakko Presto 20-130W soldering gun cost in Malaysia?

I have seen on these pages going for around RM75-85 yet the shops are asking for around RM50.
Which is the correct price?

I also read there are fakes going around?
How does one not get cheated?

Thanks in advance.
*
totally_skint
post Feb 26 2009, 06:42 PM

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QUOTE(jazzy939 @ Feb 26 2009, 02:14 PM)
I got mine for RM58 from a RM65 displayed price tag.

There are look alikes but with a different name and much lower price tags..
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Thanks jazzy,

It's not the ones with different names and prices that worry me, it's the one with the same name and same price but isn't.

Can I get replacement heater elements for the Presto?

Howsabout Antex irons?
Are the replacement tips easily found here?

Still skint cry.gif

This post has been edited by totally_skint: Feb 26 2009, 09:02 PM
CV6149
post Feb 26 2009, 07:27 PM

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Im waiting for a pcb dac from hohodiy
and its psu pcb...

frm LG info..looks like a sulzer based


got some stuff to use.

oscon caps
vishay dale resistor
jazzy939
post Feb 27 2009, 12:25 AM

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Not at all.
I know the feeling. Buy from 'reputable' outlets like the Pro's Kit shop and MAPLIN from Jalan Pasar.

Given the choice, the Antex will last you a long time! I had an Antex once when I was in the early stage of my hobby.
Honestly I have not seen any replacement heater elements.. maybe the shop have it, a matter of asking I guess..

I have seen tips for the Antex though... biggrin.gif


QUOTE(totally_skint @ Feb 26 2009, 06:42 PM)
Thanks jazzy,

It's not the ones with different names and prices that worry me, it's the one with the same name and same price but isn't.

Can I get replacement heater elements for the Presto?

Howsabout Antex irons?
Are the replacement tips easily found here?

Still skint cry.gif
*
ccschua
post Feb 28 2009, 12:10 AM

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I got my C2240, k170 plus a host of other transistor from Maplin. I was surprise to get those component from Maplin. However they dont really have the 556B.

Maplin also have Bennic. Wonder if it is the real stuff or not ?

This post has been edited by ccschua: Feb 28 2009, 12:10 AM
jazzy939
post Feb 28 2009, 09:29 AM

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How much would the Bennic costs over the 'normal' JP stuffs?
This would be reflected by the price I guess.. still, can't really trust branded stuffs from JP.. tongue.gif

QUOTE(ccschua @ Feb 28 2009, 12:10 AM)
.....

Maplin also have Bennic. Wonder if it is the real stuff or not ?
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bsl555
post Mar 2 2009, 01:06 PM

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QUOTE(jazzy939 @ Feb 28 2009, 09:29 AM)
This would be reflected by the price I guess.. still, can't really trust branded stuffs from JP.. tongue.gif
*
I'm very wary of "fake" transistors nowadays from Pasar Rd. Already there's fake caps. It does take some experience to identify them and hints can be googled. Fake power transistors on the output and fry your loudspeakers. Just be careful.
A very recent visit to Pasar Rd and I was taken aback to see many Hakko tools have increased in price. I think Proskit (supposed to be budget tools) have also seen price increase to somewhat rediculous levels. Something is very wrong going on...especially at this time when everyone harping on economy no good.

This post has been edited by bsl555: Mar 2 2009, 01:08 PM
jazzy939
post Mar 2 2009, 04:55 PM

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Hakko and Proskit price increased? man, that is BAD news! doh.gif
ccschua
post Mar 8 2009, 10:36 PM

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quite true. a lot of items on partsconnexion are on sales. fake transistors burn the speakers, I guess not on mine.

------------------

Finally I got the transimpedance circuit going. Time to see virtual ground in action. hope against hope.

user posted image

This post has been edited by ccschua: Mar 9 2009, 12:31 PM
gabanyayaya
post Mar 9 2009, 10:42 PM

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QUOTE(ccschua @ Feb 28 2009, 01:10 AM)
I got my C2240, k170 plus a host of other transistor from Maplin. I was surprise to get those component from Maplin. However they dont really have the 556B.

Maplin also have Bennic. Wonder if it is the real stuff or not ?
*
the real bennic cap being use by B&W in their Naulitus range.....still people consider bennic is the most entry level poly caps from all audiophile brands available....i let this to each individual to evaluate. but i'm also puzzled and keen to know whether it is the real or fake....??? hmm.gif


last time a friend showed to me how a fake JP Rubycon capacitor look like...and it just as same as the real one except the size is much much more small and it says...."Rukyconshakehead.gif

This post has been edited by gabanyayaya: Mar 9 2009, 10:50 PM
Paca
post Mar 15 2009, 08:53 PM

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sry if i ask a stupid question..
but DIY cable is it really worth it??
i mean the neutrik one??
jus doing some research

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