F4 power amplifier - Page 11

mpmarino · 13th March 2007, 09:28 PM

Quote:

Originally posted by veteran
Congratulations for Mr Pass and a present for you guys - another look on PCB for this amplifier

care to share a bit more detail of this nice 1 sided layout, veteran?

Zen Mod · 13th March 2007, 09:30 PM

Quote:

Originally posted by cviller

Please let me know before you etch my fish... I have a few updates to for it.

Papa is the one teasing as all! I would love to see the aleph j too!

http://www.passlabs.com/np/AlephJSerM.pdf

mpmarino · 13th March 2007, 09:43 PM

Quote:

Originally posted by Zen Mod

http://www.passlabs.com/np/AlephJSerM.pdf

Looks like NP isn't the only tease 'round here

flg · 13th March 2007, 09:58 PM

Quote:

Originally posted by flg

One thing though. the terms Cathode and Anode? wouldn't they be + and - respectively???

That's what's on the datasheet... Cuase them SS people trying to use tuby terms

And I guess cause it's a Zener picture???

I like my Anodes + and my Cathodes - ussually... enough of that...

jacco vermeulen · 14th March 2007, 03:15 AM

zener diode

You might have guessed it from the diode arrow symbol orientation.
Some manufacturers avoid the confusion by using +/- notations instead of cathode and anode.
Welcome to Solid State.

jacco vermeulen · 14th March 2007, 03:26 AM

Mark,

them others didn't say "What is", all of them disqualified for the last couple of decades.
I suppose a Z-diode would scare the bl... out of Dracula too.

jacco vermeulen · 14th March 2007, 03:45 AM

ok, let's ask Choke what he has been eating today.

Zen Mod · 14th March 2007, 10:06 AM

Quote:

Originally posted by jacco vermeulen
ok, let's ask Choke what he has been eating today.

what else than this: (attached pic)

btw- A and C debate was just fun.......toob is toob,and zenner is just a zener ,no matter how complicated is ..........plain ole simple or zener-like chip........

veteran · 17th March 2007, 12:17 PM

Different point of view on F4 amplifier PCB

Ground connected in only one point.

schematic
PCB top view
PCB bottom view

cviller · 17th March 2007, 12:30 PM

Nice!

Have you had time to etch and build the thing? Do you have some special heatsinks since you decided to have output fets on both sides?

I'm still waiting for the laminate to arrive - 1 layer pcb seems to be difficult to obtain in Denmark these days...

14th March 2007, 03:15 AM	#105
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	zener diode You might have guessed it from the diode arrow symbol orientation. Some manufacturers avoid the confusion by using +/- notations instead of cathode and anode. Welcome to Solid State. __________________ Looks like Sponge Bob has killed another thread.

14th March 2007, 03:26 AM	#106
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	Mark, them others didn't say "What is", all of them disqualified for the last couple of decades. I suppose a Z-diode would scare the bl... out of Dracula too. __________________ Looks like Sponge Bob has killed another thread.

14th March 2007, 03:45 AM	#107
jacco vermeulen diyAudio Member Join Date: Oct 2004 Location: At the sea front, just under Rotterdam	ok, let's ask Choke what he has been eating today. __________________ Looks like Sponge Bob has killed another thread.

17th March 2007, 12:17 PM	#109
veteran diyAudio Member Join Date: Feb 2004 Location: Poland	Different point of view on F4 amplifier PCB Ground connected in only one point. schematic PCB top view PCB bottom view __________________ Simple audio solutions blog.unisonus.com

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17th March 2007, 12:30 PM	#110
cviller diyAudio Member Join Date: Dec 2005 Location: Copenhagen Blog Entries: 2	Nice! Have you had time to etch and build the thing? Do you have some special heatsinks since you decided to have output fets on both sides? I'm still waiting for the laminate to arrive - 1 layer pcb seems to be difficult to obtain in Denmark these days...

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