When Zen Mod said to send all of your spare parts to him when you're finished it is because he considers them to be very fine devices.
As separate comment I would consider increasing current through irf610 constant current source.
If you don't have them I could sell you some 2sk2013/2sj313 for input ltp assuming that might interest you.
As separate comment I would consider increasing current through irf610 constant current source.
If you don't have them I could sell you some 2sk2013/2sj313 for input ltp assuming that might interest you.
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they're perfectly fine , in praxis same as IRFP240 , except slightly darker sound if you put them without any change
and yes - you can use 2SJ313 instead of IRF9610 (Pico , don't be picopico
) in input LTP ........ it'll sound better CCS IRF9610 leave as is (don't change type and there is no need for more current)
Yeah that was major brain fart haha. 2sj313 ltp (forget 2sk2013)and yes - you can use 2SJ313 instead of IRF9610 (Pico , don't be picopico
CCS IRF9610 leave as is (don't change type and there is no need for more current)
In Papa latest update he suggested increasing current through ltp for more linear operation, as you say not necessary but maybe worth trying.
OK , I agree for current increase through input LTP (I had Aleph with 50mA through 2SJ79 LTP in previous life);
but , that also means that you must explain what's next - decrease drain resistor (in this case 390R) in same amount
easypeasy :
decrease resistor in LTP CCS to 50% (twice current)
decrease resistor in LTP drain to 50% (same voltage across , so same voltage for output mosfet to open it)
put heatsink on LTP CCS mosfet
put common heatsink on LTP mosfets , better TempCo correlation , so better DC offset behavior
but , that also means that you must explain what's next - decrease drain resistor (in this case 390R) in same amount
easypeasy :
decrease resistor in LTP CCS to 50% (twice current)
decrease resistor in LTP drain to 50% (same voltage across , so same voltage for output mosfet to open it)
put heatsink on LTP CCS mosfet
put common heatsink on LTP mosfets , better TempCo correlation , so better DC offset behavior
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