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Old 10th May 2008, 05:25 PM   #26
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Hola Eketehe...
You got mail!!

Yep, you are correct.. I'm using 18V only... and those are Vishay Telefunken SF4007 avalanche... quite expensive for me tho... but I do like the sound improvements...
As also confirmed by my wife ... a casual listener...
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Old 11th May 2008, 02:14 PM   #27
eketehe is offline eketehe  Indonesia
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Quote:
Originally posted by Dino-Indo
Hola Eketehe...
You got mail!!

Yep, you are correct.. I'm using 18V only... and those are Vishay Telefunken SF4007 avalanche... quite expensive for me tho... but I do like the sound improvements...
As also confirmed by my wife ... a casual listener...
Wow, nice achievement.
I'm fail to find toroidal trafo yours here, hope you will kindly tell me where i can find it and whats the price?
I maybe goes to Jakarta in this near future.
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Old 13th May 2008, 02:16 PM   #28
eketehe is offline eketehe  Indonesia
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Quote:
Originally posted by Dino-Indo
Hola Eketehe...
You got mail!!

Yep, you are correct.. I'm using 18V only... and those are Vishay Telefunken SF4007 avalanche... quite expensive for me tho... but I do like the sound improvements...
As also confirmed by my wife ... a casual listener...
Hi Dino!
I'm Sorry...,I just find your PE!
Thankyou verymuch
Thakyou
Thanks again
Terimakasih,
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Old 14th May 2008, 08:40 PM   #29
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Quote:
Originally posted by AndrewT
So many chipampers claim that smoothing capacitance does absolutely nothing for bass response. Nice to know there's some out there that listen to the results of good PSU assembly.
These chipampers should place a switch between the capacitor banks and the psu. I did with 1000 uF / 22000 uF and can tell that high capacitance sounds much, much better.
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Old 15th May 2008, 01:36 AM   #30
sneih is offline sneih  Indonesia
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hi friends.... how much you make gainclone at rupiah?

Good job, Gracias
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Old 15th May 2008, 02:29 AM   #31
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Quote:
Originally posted by Dino-Indo

Thanks for your advise...

FYI, the electricity socket from state supply to most housing in Indonesia is having 2 prongs only ... not 3 prongs as in many other country (which one of it is for earth grounding...)...
I just read this. I know that indonesian plug looks like having only 2 prongs, but in fact it's 3! The 3rd one is on the body which is seen if you have the "big" plug.

Click the image to open in full size.

On the wall socket you can see the ground conductor in the inside of the outlet. Careful with grounding as 220v kills.
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Old 15th May 2008, 12:57 PM   #32
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Hi Gainphile,

Thanks for your advise.. Yes... It's true that my wall electricty socket has the third prong as ground.. but my GC power cord has only two prongs like picture attached .


Hi Sneih,
I spent my GC around IDR 950,000 - (approx USD 100 )
Attached Images
File Type: jpg my gc power cord.jpg (25.9 KB, 615 views)
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Old 15th May 2008, 01:09 PM   #33
AndrewT is offline AndrewT  Scotland
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Quote:
Originally posted by Dino-Indo
Hi Gainphile,

Thanks for your advise.. Yes... It's true that my wall electricty socket has the third prong as ground.. but my GC power cord has only two prongs like picture attached .
is your GC certified to meet/pass the double insulated standard?
If not then it's potentially very dangerous.
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Old 15th May 2008, 02:14 PM   #34
eketehe is offline eketehe  Indonesia
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whoaa... you skip that 3rd cable.. no comment.


Quote:
Originally posted by sneih
hi friends.... how much you make gainclone at rupiah?

Good job, Gracias
DINO :
Hi Sneih,
I spent my GC around IDR 950,000 - (approx USD 100 )"


Me:
My first amp cost : 4 jutaanlah ( appox USD 500 )
my 2nd amp : gopecenglah ( approx USD 50 )
thats because, toomuch experiment,causing surplus parts

if you want to create one, and you're not intend to be a pro, avoid the unecessary, there's peter daniel in his new thread, Zang's 'understand star grounding....' with all conclutn.. ask for the rest.
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Old 15th May 2008, 03:43 PM   #35
eketehe is offline eketehe  Indonesia
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I mean,Thats my 'must read' suggestion.
Have fun, goodluck =)
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Old 16th May 2008, 01:48 PM   #36
Edits is offline Edits  Indonesia
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Eka
Quote:
My first amp cost : 4 jutaanlah ( appox USD 500 )
Wow, thats quite a lot of money to start! for tubes or chips?
I wouldn't even try to plunge my feet were that is the minimum requirement, luckily not.

I started with just over USD 60, to get a peak into a chipamp; but yes after that fund began to flow out bit by bit. It depends on our appetite.

So if there are chipamper wannabe out there in this country that are not as "generous" as eka, dont worry. Spend wisely and it worth every cent of it But if you have the fund to spend then go for it.
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Old 16th May 2008, 01:55 PM   #37
Edits is offline Edits  Indonesia
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Dino, you should immediately replace that cable! for sure.
Quote:
Thanks for your advise.. Yes... It's true that my wall electricty socket has the third prong as ground.. but my GC power cord has only two prongs like picture attached .
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Old 17th May 2008, 12:12 PM   #38
eketehe is offline eketehe  Indonesia
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Quote:
Originally posted by Edits
Eka

Wow, thats quite a lot of money to start! for tubes or chips?
I wouldn't even try to plunge my feet were that is the minimum requirement, luckily not.

I started with just over USD 60, to get a peak into a chipamp; but yes after that fund began to flow out bit by bit. It depends on our appetite.

So if there are chipamper wannabe out there in this country that are not as "generous" as eka, dont worry. Spend wisely and it worth every cent of it But if you have the fund to spend then go for it.
Hi Pak Edits,
no they're 'tubeless' hahaha.
ironicaly i haven't finish my proper one..
Ok, tks to reminds me pak, i'll finish mine.

p.s. that little by little will kill you too see dino's signature

Brgds
Eka
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Old 17th May 2008, 01:34 PM   #39
eketehe is offline eketehe  Indonesia
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Quote:
Originally posted by ionomolo


These chipampers should place a switch between the capacitor banks and the psu. I did with 1000 uF / 22000 uF and can tell that high capacitance sounds much, much better.
Worth for try,

Mr Ionomolo,
where we put the 1000uF? close to rectifier?
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Old 18th May 2008, 11:04 PM   #40
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Quote:

DINO :
Hi Sneih,
I spent my GC around IDR 950,000 - (approx USD 100 )"

Me:
My first amp cost : 4 jutaanlah ( appox USD 500 )
my 2nd amp : gopecenglah ( approx USD 50 )
thats because, toomuch experiment,causing surplus parts

if you want to create one, and you're not intend to be a pro, avoid the unecessary, there's peter daniel in his new thread, Zang's 'understand star grounding....' with all conclutn.. ask for the rest. [/B]
Mahal amat ! ... my last indo amp was Rp17,000 - the "Big Power" a.k.a. TA7205AP but that was 1992 he..he..

But I agree, spending money for experiment is 70% of the DIY fun. Of course one could buy PCB/built GC but without problems there will be no learning
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Old 21st May 2008, 01:33 AM   #41
sukyone is offline sukyone  Thailand
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nice amp.
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Old 21st May 2008, 11:59 AM   #42
sneih is offline sneih  Indonesia
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^ wow good price!!



btw i already buy pcb of gainclone lm 3875/3886 but i'm being confuses to choice what's part i will uses..

please help me to find 'best buy' part ,thx



there is a list:

C1: (2,2uF-4,7uF/50V)
2,2uF NP/BP elco
4,7 uF NP/BP elco
2,2uF MKP/MKT
4,7uF MKP/MKT

C2: (220pF)
Polysterene paper
Silvered mica

C3: (22uF-47uF/25V)
22uF/25V Nichicon Gold
22uF/100V Elna Cerafine
47uF/35V Elna Cerafine
47uF/25V Nichicon Gold
47uF/50V Rubycon

C4: (47pF-50pF)
Polysterene paper
Silvered mica

C5,9,10: (100uF/50V)
100uF/50V Nippon-Chemicon LXG
100uF/50V

C6,7,8: (100nF/63-100V)
100nF MKM
100nF MKT
100nF Wima MKP-10



R1,3: (1K 0,5W)
1K 0,5W Vishay Dale (MF)
1K 0,5W Holco H4 (MF)
1K 0,5W Roederstein (MF)
1K 0,5W TKD (MF)
1K 0,5W Riken RM (Carbon Film)

R2,4: (20K-22K 0,5W)
20K5 0,5W Vishay Dale (MF)
22K 1W Holco H2 (MF)
22K 0,5W Riken RM (Carbon Film)
20K 0,5W Riken RM (Carbon Film)

R5: (20K-22K 0,5W)
20K5 0,5W Vishay Dale (MF)
22K 1W Holco H2 (MF)
22K 0,5W Riken RM (Carbon Film)
20K 0,5W Riken RM (Carbon Film)

R6 2R7-3R3 1W CF

R7 10R 2W CF

R8,9 22K 0,5W MF
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Old 25th May 2008, 11:35 AM   #43
eketehe is offline eketehe  Indonesia
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Hi Sneih,
The parts are good,
If your dc offset is under 50mV, you can try without Cin, but 220-1k ohm, and try 1uF - 2.2uF of MKP 10 for other result.
Have Fun,
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Old 25th May 2008, 09:30 PM   #44
sneih is offline sneih  Indonesia
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thx bro....

still in progress

Gracias
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Old 26th May 2008, 08:59 AM   #45
Edits is offline Edits  Indonesia
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Sneih, if not already order, I'll share my opinion as looking at your list I think I moved along the same path (also did eka).
For resistor take just the standard MF (the cheapest) for first build. For the upgrade, take the carbon path and FORGET the in between
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Old 26th May 2008, 12:58 PM   #46
sneih is offline sneih  Indonesia
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hmmm maybe i decide to use good parts.... not too exspensive n not too cheapest....


thx all
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Old 26th May 2008, 02:18 PM   #47
eketehe is offline eketehe  Indonesia
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Quote:
Originally posted by Edits
Sneih, if not already order, I'll share my opinion as looking at your list I think I moved along the same path (also did eka).
For resistor take just the standard MF (the cheapest) for first build. For the upgrade, take the carbon path and FORGET the in between

Agree for MK1
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Old 27th May 2008, 09:56 AM   #48
sneih is offline sneih  Indonesia
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@bro eketehe

what is mk1?
sorry newbie question
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Old 28th May 2008, 02:25 PM   #49
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dino, $100 for stereo setup correct? i only want to build a mono amp for my guitar. did you also source the toroid transformer here in Jakarta?

thx.
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Old 28th May 2008, 03:51 PM   #50
eketehe is offline eketehe  Indonesia
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Quote:
Originally posted by sneih
@bro eketehe

what is mk1?
sorry newbie question

cud be your 1st project.
don't want to try a stereo?
AXs, GTs, ZOOMs,.. optionaly have stereo out, 3D sounds not teasing you?
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