Having semisouth on hand but no 2sj74 I am thinking to build a J2 with mosfet input like aleph M alpeh 3 etc...
Is this feasible and what would-i leave on the table soundwise compared to a real J2 ?
Is this feasible and what would-i leave on the table soundwise compared to a real J2 ?
The original Alephs used Mosfets, no reason why you can't pick from the wide choices available the days.
I searched for "Aleph revisited" thread, started by Pass - in all possible ways ( excluding pure manual search through threads, page by page), but I can't find it ......
maybe someone will chime in
maybe someone will chime in
I know which thread you are talking about tried everything including all google tricks, can't find either...
yup
fact: what I didn't save in my PC ( at least twice so I can grasp later how I Titled it) - it ...... isn't saved
🙂
fact: what I didn't save in my PC ( at least twice so I can grasp later how I Titled it) - it ...... isn't saved
🙂
oh yeah
Lock, Stock and Two Smoking Barrels
https://www.diyaudio.com/community/threads/the-aleph-design-reloaded.267857/
So 2SJ313 was recommended. Also unobtainium.
I would have recommended 2SJ79, but also unobtanium. 😉
Patrick
I would have recommended 2SJ79, but also unobtanium. 😉
Patrick
Quote :
"BTW, since the IR P channel has been mentioned, since taken over by Vishay
we are seeing 9240 type parts without the shelving issue. Still trying to track
down which fab is making those..."
https://www.diyaudio.com/community/threads/complementary-power-mosfets.378024/post-6870854
That does not apply to the 9610 ?
In any case, if you only use it as cascode device, then it does not matter so much.
Patrick
"BTW, since the IR P channel has been mentioned, since taken over by Vishay
we are seeing 9240 type parts without the shelving issue. Still trying to track
down which fab is making those..."
https://www.diyaudio.com/community/threads/complementary-power-mosfets.378024/post-6870854
That does not apply to the 9610 ?
In any case, if you only use it as cascode device, then it does not matter so much.
Patrick
got a pair kindly donated by Papa...
trying to get the best result for a small budget
I have already heat sinks and PSU toroids
trying to get the best result for a small budget
I have already heat sinks and PSU toroids
in that case - just use what is most convenient for you, from whatever reason
in most cases, for still active parts - price of part is still much smaller than shipping involved
and you always need plenty of luck to get everything what you need from one Vendor, so shipping cost is diminished
so, 2E per part is ridiculously low, possibility and expenses to get it is much trickier part
I know - when going cheapskate route ( done that more than enough times) everything counts but - worth thinking about real value of project started - if all is needed to bring it to significantly higher level, then just prolong it ...... more time, lesser strain on brain and wallet
in most cases, for still active parts - price of part is still much smaller than shipping involved
and you always need plenty of luck to get everything what you need from one Vendor, so shipping cost is diminished
so, 2E per part is ridiculously low, possibility and expenses to get it is much trickier part
I know - when going cheapskate route ( done that more than enough times) everything counts but - worth thinking about real value of project started - if all is needed to bring it to significantly higher level, then just prolong it ...... more time, lesser strain on brain and wallet
the 2x TP2640 have to be matched, so need to buy at least 50 pieces to find 2 matched pairs? meaning 65€ at tme.eu
or go to F8 topology to avoid the matched pair but I dont know if F8 with mosfet input could work?!
or go to F8 topology to avoid the matched pair but I dont know if F8 with mosfet input could work?!