As I've been trying to keep the Semisouth GB thread reasonably clean, I guess it's time to open a dedicated thread, for discussing what we can get out of those little fellas 😎
So.......do your worst 😀
Magura 🙂
So.......do your worst 😀
Magura 🙂
Some iteration of the F3 could also be interesting.
Could be easy, as there are boards made already, and most around here, already have the PSU part.
Magura 🙂
Could be easy, as there are boards made already, and most around here, already have the PSU part.
Magura 🙂
They are pretty much drop in replacements for vertical
Mosfets. The bias voltage and thermal characteristics would
probably support replacements of Laterals as well.
😎
Mosfets. The bias voltage and thermal characteristics would
probably support replacements of Laterals as well.
😎
hi guys
im glad this thread has been started as i was not sure what to use mine for
what about replacing the irfp240 on a aleph 4 clone ?
is this doable and if so would i need the same amount ie 24
regards sheafer
im glad this thread has been started as i was not sure what to use mine for
what about replacing the irfp240 on a aleph 4 clone ?
is this doable and if so would i need the same amount ie 24
regards sheafer
Nelson's J2 circuit has elements of the Aleph-J and BA-1 from what I see.
Can't be too wrong to start somewhere around their. will ask cviller at BA-3 what's going on with those front end boards. 😀
Can't be too wrong to start somewhere around their. will ask cviller at BA-3 what's going on with those front end boards. 😀
stability issues ?
How prone are these Semisouth devices to oscillations compared to
say, a mosfet? MOS devices would typically need a couple of hundred ohms
right at the gate to stabilise them, are these required at these values?
TIA
How prone are these Semisouth devices to oscillations compared to
say, a mosfet? MOS devices would typically need a couple of hundred ohms
right at the gate to stabilise them, are these required at these values?
TIA
Papa's J amp is pretty much like Aleph , but without Aleph CCS on output
you need more juice from input stage , that's why Papa use paralleled 2SJ109 on input
I second the Aleph J or better yet the X'd J since I have two mono chassis and 4 PD boards sitting on my work bench and a few more J109's for juice 😀
Tom
Where do you get these power jfets? I thought they had to be purchased in quantities so large that only someone like Nelson could grab the supplier's attention...
Group buy? Where? Looks like a search is in order! Maybe someone can bring a demo amp to Burning Amp?
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