Never used that transistor.
I’m getting confused on what you need and for what amp? Show a diagram please.
There are MPSA92 and an alternate KSPA92 (with higher Hfe but I can’t find these available)
As well there are KSA992, which replaced 2SA992
Note these are different parts and not interchangeable generally.
And what you linked is none of these I listed above.
I’m getting confused on what you need and for what amp? Show a diagram please.
There are MPSA92 and an alternate KSPA92 (with higher Hfe but I can’t find these available)
As well there are KSA992, which replaced 2SA992
Note these are different parts and not interchangeable generally.
And what you linked is none of these I listed above.
I have attached an alternate schematics FH11 - difference is number of outputs. It shows shows T6, as a MPSA92.
Someone will correct me - but I don't think the KSA992 has enough current capability for that location.
But there are substitutes - You could use 2N5551 for the T1/T2 c1845, you can substitute the MPSA92 for a MJE350 (however different package and pinout)
If you have issues finding some parts - send me a PM, I have most of these in my stash.
Someone will correct me - but I don't think the KSA992 has enough current capability for that location.
But there are substitutes - You could use 2N5551 for the T1/T2 c1845, you can substitute the MPSA92 for a MJE350 (however different package and pinout)
If you have issues finding some parts - send me a PM, I have most of these in my stash.
Attachments
Appreciate that. I've found MPSA92 but they are Multicomp Pro brand from Farnell here in the UK. Not sure of they're ok? And I have extra shipping to pay over my Mouser order. But I shall probably go with them for now. Thanks for the offer and help.
Hello jimk04,
those are indeed MPSA92.
I have used RS pro brand components before and never had any issues. I have used some shortforms in the schematic.
A1381-- KSA1381
C3503---KSC3503
C1845---KSC1845
A992-----KSA992
SA92-----MPSA92 ...
some caps are also marked as 101 meaning 100pF, 330p implies 330pF, 104 implies 100nF
those are indeed MPSA92.
I have used RS pro brand components before and never had any issues. I have used some shortforms in the schematic.
A1381-- KSA1381
C3503---KSC3503
C1845---KSC1845
A992-----KSA992
SA92-----MPSA92 ...
some caps are also marked as 101 meaning 100pF, 330p implies 330pF, 104 implies 100nF
APEX AA11 Class A amplifier assembly is complete. Excellent sound. Typical class A. Thanks Prasi for the PCB.
Attachments
. Nice workPrasi thanks for the info.
Thimios....which part number?!
Fazildiken. Nice.! Modest heatsink. Maybe one for me to build sometime!
Thimios....which part number?!
Fazildiken. Nice.! Modest heatsink. Maybe one for me to build sometime!
I don't understand why no picture attached😕
Is it something wrong with diyaudio server?
my question is about faston sleeves post#13750
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heatsink was used temporarily. It doesn't make sense to use it for a long time with this heatsink. we will produce one for you as well.
On the Prasi FH9 board are the 330pf, 100pf and 4.7pf better off as ceramic (NPO?) or film?
Thankyou
Thankyou
Yes they should be min NPO C0G, no X7R . 100V for 100pF and 4.7pF.
For the 4.7 pF Silver mica is also preferred but will be odd to fit on board . I don't have the layout / sch handy.
For the 4.7 pF Silver mica is also preferred but will be odd to fit on board . I don't have the layout / sch handy.
