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Old 1st November 2013, 01:17 AM   #321
badtoby is offline badtoby  United States
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Default Aleph j active devices

Can anyone tell me what active devices were used in the First Watt aleph j?
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Old 1st November 2013, 02:52 AM   #322
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Originally Posted by badtoby View Post
Can anyone tell me what active devices were used in the First Watt aleph j?
LSJ74/2sj74, IRFP240, Bc/ZTX

Didiet
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Old 1st November 2013, 11:21 PM   #323
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swapping places of R3 and C1 - yes , why not ; electrically also irrelevant
Thanks Zen. That how I saw it. It may not be irrelevant to fitting a big cap.
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Old 7th November 2013, 08:58 AM   #324
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WOW!
It took a while but I read the whole thread ,Got my boards today from the DIYstore,got them here fast too,Thanks Guys!

I ordered the jfets that were there and just pulled one out of each "B" bags and they matched,lol.
I put them in a F5 and all metered up correctly ,I will test the rest of them tommorrow,

I'd like to THANK 6L6 for the build GUIDE/thread and helping with the R27 thing,It finally sank in after I read the thread and figured out what the circuit does,
so It's time to build one and see!or should I say hear,lol.
Best Regards,
NoSmoking

Last edited by noSmoking; 7th November 2013 at 09:08 AM. Reason: Kant speill good
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Old 8th November 2013, 04:23 PM   #325
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Maybe this has been asked and answered before...

But, what are the chances of getting a working (and good sounding!) amplifier using some of the Cree SiC MOSFETs on the output? Now that Semisouth is gone, I wonder how the other SiC FETs stack up.
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Old 8th November 2013, 05:14 PM   #326
Zen Mod is offline Zen Mod  Serbia
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wrong thread , at least considering context

F6 thread , and few dedicated - Semisouth goes Dodo etc.
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Old 8th November 2013, 06:32 PM   #327
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Sorry... Meant my question to be about the Aleph J boards with these parts. Was thinking along the lines of non-Semisouth J2...
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Old 8th November 2013, 07:05 PM   #328
Zen Mod is offline Zen Mod  Serbia
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possible , certainly

look for 6L6's thread about his J with Semisouths (forgot exact name of thread/amp ; Jango ?)

but , it seems nobody played with Cree's , even if I remember seeing curves here and there , nobody published anything about actual use in amp and measurements

though , both my memory and sight aren't most brilliant


edit : found it - The Aleph Jango
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Old 9th November 2013, 09:10 AM   #329
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Hi,
Well one board is alive and dialed in too,sounds good too!
Takes for the build guide It was spot on!
Thanks 6L6 and you other guys,lol.
Anyone using a Heath-kit -IT3121,It reads Jfets fine ,I can't get a mofset to read anything but reverse breakdown,I am building another circuit for them to use with a scope,
Thanks,
NS
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Old 9th November 2013, 12:52 PM   #330
gadut is offline gadut  Indonesia
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another small progress due to tight budget,collect parts slowly. I have watched umut1001 ebay kendeil item for long time, but never clicked "buy" button, mostly because of the price and shipping cost but being patient lead me to local senior diyer who does not need his big caps anymore and I pickup his
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