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Old 25th December 2011, 03:13 PM   #21
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Quote:
Originally Posted by AudioSan View Post
chipamp.com. bottom of site Order | Chipamp.com
it is a nice CRC/CLC PSU. it supports 6pc 40mm caps, bleeder resistors and bypass caps.
So this PSU can use a generic model ?

Is the referred PSU: Snubberized Power Supply Kit Contents
Can just use the kit without modifications ?

Quote:
Originally Posted by KatieandDad View Post
http://www.kk-pcb.com

Has a few of them too.
This seems to conflict - PSU for different models ???

This is my first diy project, sorry for all of the stupid qns
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Old 25th December 2011, 04:19 PM   #22
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Location: Santa Rosa Beach, FL
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Originally Posted by zzzmonster View Post
This seems to conflict - PSU for different models ???
True. Some of the PSUs take different values (sizes) for their electrolytic capacitors. Having said that, the overall schematic, and therefore the LAYOUT of the PCB itself is pretty "universal".

I'm assuming you've read the F5 note on the Pass First Watt site. This gives the recommended values for the PSU to be used with the F5. It would be up to you to determine if you want a common power supply (powering both channels) or dual power supplies (one for each channel). You'll need to read this referenced note, if you haven't yet. I gives a pretty clear understanding of how the F5 works, which is valuable for a new builder.
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Old 26th December 2011, 12:26 AM   #23
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Quote:
Originally Posted by zzzmonster View Post
So this PSU can use a generic model ?

Is the referred PSU: Snubberized Power Supply Kit Contents
Can just use the kit without modifications ?



This seems to conflict - PSU for different models ???

This is my first diy project, sorry for all of the stupid qns
this is UP too you ex. 6x10.000uF 2.2Kohm and 2.7uF is a great start for a F5 and a 300VAtransformer for eatch channel
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Old 26th December 2011, 09:39 AM   #24
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Quote:
Originally Posted by AudioSan View Post
why match mosfets? you can get them matced from tech-DIY.
Wish I'd have known that.

I bought 50 IRFP244s to get 4 x Sextuplets for my Aleph 4.
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Old 27th December 2011, 01:03 AM   #25
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Well, thanks again guys, this is getting exciting!.
Ordered the amp boards (the long, narrow ones he-he!), as
they will fit my idea of sink better and have that Pass look to it too...
Also bought power supply boards (they were sitting on the doc o the Bay),
but they come with eight 10 000uf caps inst of 15's... Good enough ?
or should i change em for 15's ? ( the boards are un-populated).
Planing to order a pair of Conrad MF 35-151.5 sinks (vertical fins) and using the
aluminum chassis as aditionnal cooling.
The amp will be well ventilated, in a cool, dry environment.
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Old 28th December 2011, 04:32 AM   #26
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http://www.kk-pcb.com/index.html

This guy sells boards from Europe.
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Old 30th December 2011, 08:00 PM   #27
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Thanks Gringo!.
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Old 30th December 2011, 09:42 PM   #28
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turbo where are you living? I am in Calgary. I want to make an Aleph3.
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Old 31st December 2011, 01:23 AM   #29
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I am in Quebec!. I want to put together the F-5 as my first attempt on
diy amplifiers and a B-1 to "feed" it afterwards.

Back in the first toroidal transformers days, they were enclosing them
in steel "cans" to make em quiet and non-magnetic to circuits around them.

Antek even offers them for some models (up to 400 vac)...
I was wondering, if we wouldn't gain even more silence so to speak,
by using those?... Just food for thoughtsss here!.
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Old 1st January 2012, 02:35 PM   #30
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Location: Silicon Valley
Quote:
Originally Posted by turboyam View Post
Back in the first toroidal transformers days, they were enclosing them in steel "cans" to make em quiet and non-magnetic to circuits around them.

Antek even offers them for some models (up to 400 vac)...
I was wondering, if we wouldn't gain even more silence so to speak,
by using those?... Just food for thoughtsss here!.
Very brief thread on adding xformer shielding here:
Transformers are close to output boards
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