Pictures of your diy Pass amplifier - Page 174

NSP · 9th March 2013, 03:33 PM

Quote:

Originally Posted by pcb121055

Great work on the cover! Would the value of such a cover be to reduce stray fields or the transformer's mechanical noise?

The transformer that I bought is designed for audio applications and have a minimal magnetic leakage so the cover is probably not necessary. I made it because the inside of the amp will be more "clean" looking in my opinion. If it also shields the trafo a little I consider that a bonus.

jacco vermeulen · 9th March 2013, 04:25 PM

That thick, it sure does.
(but an aluminum pot cover does too)

pcb121055 · 9th March 2013, 04:33 PM

I'm with you 100%. It does look great and worth the effort on that basis alone. I was just curious because it looks tough to have so many diverse elements in a case without interference. I wondered if some level of scrutiny for their physical arrangement wasn't worthwhile. Then... I was thinking way back to my EE transmission line lab and our measured results for line-of-sight, ungrounded shields were not very good. Someone here may have some real emag experience to refute my observation but maybe an insulated cover would be mainly cosmetic? but hey, from a guy that buys chrome valve covers... i still like it

bcmbob · 11th March 2013, 09:53 AM

May not be the right thread, but has anyone created a Mouser BOM or cart for the F5 V2.8 boards? Would save a bit of time and help avoid mistakes.

Blink_PT · 20th March 2013, 04:17 PM

Finally everything is finalized.

It has a bridge rectifier for the two channels as the original.

Built a soft start and a low noise fan at the top.

All tuned, and now it's just music.

labjr · 20th March 2013, 04:27 PM

Nice!

No diodes D1-D4?

How many VA is the power transformer?

McQuaide · 20th March 2013, 04:48 PM

Nice. Two questions -- how did you do the lettering on the front, and where did you get the nice silver feet?

oiphy · 20th March 2013, 05:09 PM

nice build

1
question from me to. why fan at the top?

stig

vdi_nenna · 20th March 2013, 06:04 PM

Quote:

No diodes D1-D4?

Are they mounted away from the heatsink?

bcmbob · 20th March 2013, 06:10 PM

Blink_PT,

Can you give some info on your power supply design? I'm new to that part of DIYing and yours certainly appears interesting.

9th March 2013, 04:25 PM	#1732
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, Rotterdam or Curaçao	That thick, it sure does. (but an aluminum pot cover does too) __________________ Not so much,.......if it says "ZM" in the corner.

11th March 2013, 09:53 AM	#1734
bcmbob diyAudio Member Join Date: Dec 2009 Location: Bay City, Michigan	May not be the right thread, but has anyone created a Mouser BOM or cart for the F5 V2.8 boards? Would save a bit of time and help avoid mistakes. __________________ Bob M. "Arrange Whatever Pieces Come Your Way."

20th March 2013, 05:09 PM	#1738
oiphy diy newbie diyAudio Member Join Date: Sep 2011 Location: norway	nice build 1 question from me to. why fan at the top? stig __________________ " If you're going throu hell, keep going"

20th March 2013, 06:10 PM	#1740
bcmbob diyAudio Member Join Date: Dec 2009 Location: Bay City, Michigan	Blink_PT, Can you give some info on your power supply design? I'm new to that part of DIYing and yours certainly appears interesting. __________________ Bob M. "Arrange Whatever Pieces Come Your Way."

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9th March 2013, 04:33 PM	#1733
pcb121055 diyAudio Member Join Date: Sep 2008	I'm with you 100%. It does look great and worth the effort on that basis alone. I was just curious because it looks tough to have so many diverse elements in a case without interference. I wondered if some level of scrutiny for their physical arrangement wasn't worthwhile. Then... I was thinking way back to my EE transmission line lab and our measured results for line-of-sight, ungrounded shields were not very good. Someone here may have some real emag experience to refute my observation but maybe an insulated cover would be mainly cosmetic? but hey, from a guy that buys chrome valve covers... i still like it

20th March 2013, 04:27 PM	#1736
labjr diyAudio Member Join Date: Apr 2003 Location: MA	Nice! No diodes D1-D4? How many VA is the power transformer?

20th March 2013, 04:48 PM	#1737
McQuaide diyAudio Member Join Date: Jan 2011 Location: Southeastern Pennsylvania	Nice. Two questions -- how did you do the lettering on the front, and where did you get the nice silver feet?

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