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Old 7th September 2012, 06:08 PM   #701
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Default OPB PCB

If interested add your name to this list.

The amplifier can be found here
HAL OPB amplifier
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Old 7th September 2012, 06:15 PM   #702
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Default 2DIFFEF PCB

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The amplifier can be found here
http://www.diyaudio.com/forums/solid...amplifier.html
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Old 7th September 2012, 09:53 PM   #703
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These could also be used

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MJH6284G ON Semiconductor | MJH6284GOS-ND | DigiKey
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Old 18th September 2012, 01:29 PM   #704
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Quote:
Originally Posted by OnAudio View Post
If interested add your name to this list.

The amplifier can be found here
http://www.diyaudio.com/forums/solid...amplifier.html
Hi OnAudio,

What exactly is the procedure here?

I'd like to build this amplifier.

Chris
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Old 18th September 2012, 04:34 PM   #705
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Quote:
Originally Posted by undefinedza View Post
Hi OnAudio,

What exactly is the procedure here?

I'd like to build this amplifier.

Chris
Your Free to start a group buy. Drowranger was preparing a PCB. If his isnt ready will prepare one .
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www.harrisonaudiolabs.com
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Old 20th September 2012, 09:46 PM   #706
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Default PC board order info

Hello
I'm interested on one pair SYMEF amplifier ad also on these "PC boards attached" one pair...
How I can order or participate in the "group buy"
Greetings Gabor
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File Type: jpg 1DIFFQCTIP142PCB2.jpg (139.8 KB, 126 views)
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Old 25th October 2012, 08:33 AM   #707
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Location: Champaign, Illinois
Default How to attach the output transistors

Quote:
Originally Posted by OnAudio View Post
[/URL]

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My SYMEF type 2 PCBs arrived and look great. Thanks HAL. They seem the same as this draft, at least regarding the orientaion of the output transistors.

I am puzzled however with the orientation of the output transistors. How do I attach them to the heatsink and get the leads in the right PCB orientation as shown.

I'll appreciate an explanation; picture would be even better.

Thanks,
Francois
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Old 25th October 2012, 02:32 PM   #708
evette is offline evette  Canada
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Simple Mount the outputs under the board and gently bend the leads. Regards Evette
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Old 25th October 2012, 03:34 PM   #709
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Location: Champaign, Illinois
Evette,

Thanks for your reply.

The problem is that if the output transistors are mounted to a heatsink (with the metal tabs on the heatsink) then the leads have to be "switched" to match the PCB orientation of the leads. Am I misunderstanding something?

Thanks.
Francois
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Old 25th October 2012, 03:46 PM   #710
evette is offline evette  Canada
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Mr. Sir Francois if you take q5 and lay it flat on your hs towards the fuse holder now line up your pcb over the top of it and you,ll see they line up ( lead wise) perfectly. Regards Evette
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