F5 pcb group buy... - Page 7

Peter Daniel · 17th April 2009, 05:27 PM

Quote:

Originally posted by schro20

But these only do as much as 1.5Amps. Nowhere near enough for an F5. What am I missing?

When I design PS boards, I try to give them wider appeal than just one particular application. The regulator section by no means isn't intended to be used with class A amps, but a lot of people are using those boards with CD transports:

sandbasser · 18th April 2009, 04:15 AM

Hi Peter -

I'm interested in 2 more of the PSU boards, if available.

Thanks,
- Ray

Peter Daniel · 18th April 2009, 05:38 AM

I'm out of them at the moment, but will order more soon.

sandbasser · 19th April 2009, 01:20 PM

I'm intrigued by the possiblity of using some large 'screw-mount' caps on the PSU board. I'm assuming I'll have to drill my own holes.

Any words of caution???

And, do any traces on the bottom need to be cut???

I've attached an image from earlier in the thread to show what I'm talking about...

Please excuse all my dumb-noobie questions.

Thanks,

Peter Daniel · 19th April 2009, 06:47 PM

No traces need to be cut, just drill proper holes and remove solder mask.

The board you see in a picture above had the holes already, as it was designed for F3 amp where only single positive voltage PS board could be used, hence I made it suitable for screw mount caps which usually come in larger size.

speakrsrfun · 21st April 2009, 04:00 AM

Just figured I'd let you know I recieved my F5 boards today, thanks again Peter and I look forward to the PS Boards, Peace and keep well.

alphalove · 21st April 2009, 04:18 AM

Hello Peter,
Just a quick thank you. I received my 2x F4 and 2x F5 boards.

Cheers,

alex

rickmcinnis · 21st April 2009, 05:45 PM

Peter,

There is discussion about using heat sinks for the rectifiers in the F5 (and I guess any other application for that matter) due to a diminution of performance due to heat.

Do you find that the rectifiers heat up in your application?

Do you have an opinion on this? As always, I would be interested in hearing what you think.

Thanks,

Peter Daniel · 21st April 2009, 05:54 PM

I didn't even consider using rectifiers without heatsinking, so it's hard for me to say how hot they normall run. My PS pcbs allow mounting rectifiers directly on a chassis, which I find more practical than additional heatsinks. Picture below shows one of my (temporary) test setups:

jjbraham · 21st April 2009, 06:22 PM

Hi Peter, are you planning on ordering some F3 boards in the future?

Thanks,

JJ

18th April 2009, 04:15 AM	#62
sandbasser diyAudio Member Join Date: Sep 2008 Location: Riverside, CA - USA	Hi Peter - I'm interested in 2 more of the PSU boards, if available. Thanks, - Ray __________________ - Ray

18th April 2009, 05:38 AM	#63
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I'm out of them at the moment, but will order more soon. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

19th April 2009, 06:47 PM	#65
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	No traces need to be cut, just drill proper holes and remove solder mask. The board you see in a picture above had the holes already, as it was designed for F3 amp where only single positive voltage PS board could be used, hence I made it suitable for screw mount caps which usually come in larger size. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

21st April 2009, 04:00 AM	#66
speakrsrfun diyAudio Member Join Date: May 2005 Location: Toronto	Just figured I'd let you know I recieved my F5 boards today, thanks again Peter and I look forward to the PS Boards, Peace and keep well. __________________ What was that?... I can't hear you I have a line array filling my ears.

21st April 2009, 05:45 PM	#68
rickmcinnis diyAudio Member Join Date: Jun 2006	Heat sinks for rectifiers? Peter, There is discussion about using heat sinks for the rectifiers in the F5 (and I guess any other application for that matter) due to a diminution of performance due to heat. Do you find that the rectifiers heat up in your application? Do you have an opinion on this? As always, I would be interested in hearing what you think. Thanks, __________________ Rick McInnis


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21st April 2009, 04:18 AM	#67
alphalove diyAudio Member Join Date: Nov 2008 Location: Perth	Hello Peter, Just a quick thank you. I received my 2x F4 and 2x F5 boards. Cheers, alex

21st April 2009, 06:22 PM	#70
jjbraham diyAudio Member Join Date: Jan 2008	F3 boards Hi Peter, are you planning on ordering some F3 boards in the future? Thanks, JJ

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