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An another way to Firstwatt F1?
An another way to Firstwatt F1?
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Old 31st August 2006, 12:53 PM   #1
Idefixes is offline Idefixes  France
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Default An another way to Firstwatt F1?

As the tittle said i plan to build a F1 for may Fostex FE168ES in Back Horn

Click the image to open in full size.

The construction is here it's in french but there is enough pictures.

http://idefixes.phpnet.org/sections.php?op=viewarticle&artid=6

I have in hand enough filtering capa and a empty amp case from a past project with good amout of heathink.

The Idea was to realise the F1 since these sort of amp match very well with full range speaker as fostex.
Since I have on hand 200 IRFP044 for 2 Aleph X project i ask me if it's a silly idea to replace IRFP240 by 044, in the diff paire but in CCS to. In ZenV2 there one IRFP044 CCS modele. The friend that allway help me is to busy to spend time on that

I 'redrawn my F1 idea schématic

Click the image to open in full size.

Marc
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Old 31st August 2006, 01:45 PM   #2
Babowana is offline Babowana  South Korea
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Your variation with all IRF044 of N channel, including the swapped upper CCS, looks possibly better than the Papa's original.
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Old 1st February 2012, 07:41 PM   #3
leadbelly is offline leadbelly  Canada
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An another way to Firstwatt F1?
Sorry to revive an old thread, but an all IRF044 Firstwatt is just what I want. Sadly, all the links are dead. Any help?
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Old 1st February 2012, 07:52 PM   #4
Roscoe Primrose is offline Roscoe Primrose  United States
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You should be able to just drop the IRF044 in place of the IRFP-240. If you want to also replace the IRFP9240s with IRF044s, take a look at the Zen Variations 2 article.

Roscoe
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Old 1st February 2012, 09:16 PM   #5
leadbelly is offline leadbelly  Canada
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An another way to Firstwatt F1?
Quote:
Originally Posted by Roscoe Primrose View Post
You should be able to just drop the IRF044 in place of the IRFP-240. If you want to also replace the IRFP9240s with IRF044s, take a look at the Zen Variations 2 article.

Roscoe
Thanks!
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Old 1st February 2012, 09:40 PM   #6
Tea-Bag is offline Tea-Bag  United States
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An another way to Firstwatt F1?
Hurrah to current source amps!
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Old 26th April 2017, 06:23 PM   #7
leadbelly is offline leadbelly  Canada
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An another way to Firstwatt F1?
To revive an old thread a second time;

OK, I get the F1 plus Zen V2 CCS, simple enough.

Now, how would I modify it for higher power. Lots of IRF044's available
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Old 26th April 2017, 08:59 PM   #8
Zen Mod is offline Zen Mod  Serbia
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An another way to Firstwatt F1?
post schematic of your liking , so we can start from somewhere
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Old 26th April 2017, 09:58 PM   #9
leadbelly is offline leadbelly  Canada
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An another way to Firstwatt F1?
I can post schematic of F1 + N-ch CCS, but no idea how to add ouput devices for more power. Are they in parallel, Darlington, what about beefing up 1st stage?
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Old 26th April 2017, 10:03 PM   #10
Zen Mod is offline Zen Mod  Serbia
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An another way to Firstwatt F1?
then post it ...
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