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Old 17th April 2006, 04:03 AM   #11
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by jh6you
Thinking that the class A power amp requires wide inner space, I wonder why trying to make mini PCB . . .

Any good argument?

The purpose of the mini a's are cost and sound.

The cost to build a single channel is so low it's quite worth it in every way..

Sound well i know a few people that run them with fostex speakers and like the sound. Personally i like them better than all the amps that i have.
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Old 17th April 2006, 05:02 AM   #12
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Quote:
Originally posted by jleaman

Personally i like them better than all the amps that i have.

I have no doubt as to your amp.

My question was about any worth making "PCB" mini even though the space is wide enough allowing large size of it.

Thanks
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Old 17th April 2006, 05:04 AM   #13
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by jh6you


I have no doubt as to your amp.

My question was about any worth making PCB mini even if the space is wide enough allowing large size of it.

Thanks

I don't get what you are saying ? Space ?
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Old 17th April 2006, 05:06 AM   #14
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The space inside amp.

Thanks
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Old 17th April 2006, 05:08 AM   #15
BrianGT is offline BrianGT  United States
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Quote:
Originally posted by jh6you
My question was about any worth making PCB mini even if the space is wide enough allowing large size of it.

Thanks
If you are referring to the large surface area of the required heatsinks required, as compared to the small size of the pcb, my motivation to make the small boards, was the prospect of shorter signal paths and the general novelty of smaller boards.

The smaller boards, when used with the 10-15w configuration, simply allow the devices to be mounted on the pcb and screwed directly to the heatsink. This makes for easy output device wiring and greater options for chassis design. The board is 3" tall when mounted in a vertical manner.

Here is a picture of the first version of this project that I made over 2 years ago:
http://www.briangt.com/gallery/album...ni_1.sized.jpg
The new boards allow for accepting balanced input, unlike the first revision of the SMD layout.

--
Brian
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Old 17th April 2006, 05:29 AM   #16
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Quote:
Originally posted by BrianGT

the prospect of shorter signal paths and the general novelty of smaller boards.

Understood. Tks, Brian.
And, the picture looks nice.

Regards
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Old 19th April 2006, 12:28 AM   #17
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Brian's boards arrived in perfect shape today. They look mighty nice too. The only downside for a 50 year old fart like myself are the itty bitty parts it uses and the aux. magnifier that it will teke for me to see them.... Its a darn good thing that I don't repair still cameras any more!

I hope we will see more faces at the shootout!

Mark
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Old 19th April 2006, 01:14 AM   #18
jleaman is offline jleaman  Belgium
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Can you post pictures again These will be replacing my through hole Mini's
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Old 19th April 2006, 01:19 AM   #19
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Jason,

Why not hop a plane down here and get a free set of boards! I have a dedicated listening room now . Ticket prices are going up fast so book soon!

Mark
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Old 19th April 2006, 01:23 AM   #20
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by Mark A. Gulbrandsen
Jason,

Why not hop a plane down here and get a free set of boards! I have a dedicated listening room now . Ticket prices are going up fast so book soon!

Mark

Ok ill come down i did to Brians do you have a messy basement and lots of goodies to share with me
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