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AB100 Class AB Power Amplifier
AB100 Class AB Power Amplifier
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Old 31st May 2019, 08:57 PM   #491
rookakoma is offline rookakoma  Hungary
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Location: Budapest
Quote:
Originally Posted by Nelson Pass View Post
Not to step on toes, but here are my files.

Board is 2.85" x 9.725" and the Gerbers are in the format that pcbway.com
seems to be happy with.
I recommend the jlcpcb, which is cheaper than pcbway.
The quality is really good, we used it regularly for production at Norma Instruments. 5 boards is 10 USD+ shipping, which is 25 USD whith DHL.
They are very fast and professional.
For example:
First Watt F7 review
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File Type: png AB100_JLC.PNG (281.9 KB, 845 views)
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Old 1st June 2019, 10:23 PM   #492
Skylar88 is offline Skylar88  South Africa
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I intend to use this as a plate amp for a sub. Will it be viable to mount it on a piece of flat aluminum or is a finned heatsink required? If the latter, what size heatsink?

Question 2: What VA rating is recommended for the transformer?
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Old 2nd June 2019, 09:18 AM   #493
carsten.witt is offline carsten.witt  Germany
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Dear mr Pass (Papa),

first thanks for all your effort for the diy community and also thanks for the files!

I ordered today 10 Boards and i will send to others diy friends here for postage and a little fees (like for an padded envelope, if there will be customs charge the i share it on the 10 boards, it is Germany and here nobody knows how the customs "ticks" ;-) ).

Click the image to open in full size.
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Old 2nd June 2019, 09:29 AM   #494
osscar is offline osscar  Latvia
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Good work !!!
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My DIY so far: two Leach amps,two Pass AB100, Pass F5, B1 buffer, Hiraga le monstre, two LM3875, LM1875, OPA549, 6C33C SE, GU32 PP, 6p3c-e PP, Marsh headphone amp.Phono - OBH-8se, Pacific RIAA, inDiscreet Phono, MF A1 Clone, Whammy headphone amp.
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Old 2nd June 2019, 11:57 AM   #495
manniraj is offline manniraj  India
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I will be interested in a pair of boards but do let me know how much does it cost for shipping in a padded envelope to India and also the cost of the pair of boards.

Thanks
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Old 2nd June 2019, 12:20 PM   #496
carsten.witt is offline carsten.witt  Germany
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@manniraj,

ok, will do so if I hold the boards in my hands.
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Old 2nd June 2019, 12:58 PM   #497
Danger Mouse is offline Danger Mouse  Germany
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how thick you have choosen the copperlayer 32Ám? or 70Ám
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Old 2nd June 2019, 01:04 PM   #498
carsten.witt is offline carsten.witt  Germany
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1oz = 35ym, i will solder a wire along the power lines but I think it would be enough.
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Old 2nd June 2019, 01:20 PM   #499
carsten.witt is offline carsten.witt  Germany
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@All,

please write your name here in the thread, makes it easier for me, thanks!
But, please thing about that some PCB factories have a "welcome bonus", that would be in some cases cheaper the the shipping and so.


1. manniraj
2. Cambe
3. Robbie
4. Dieter

[EDIT] So all boards are gone, if some one goes away from this I will post it here
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Last edited by carsten.witt; 2nd June 2019 at 01:27 PM.
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Old 2nd June 2019, 06:50 PM   #500
manniraj is offline manniraj  India
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Quote:
Originally Posted by carsten.witt View Post
@All,

But, please thing about that some PCB factories have a "welcome bonus", that would be in some cases cheaper the the shipping and so.
Yes exactly my point, so please let us know the total cost of these boards shipped. I am not sure if printing them from China makes it cheaper including shipping.

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