100W Ultimate Fidelity Amplifier

Member
Joined 2013
Paid Member
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.
 
Member
Joined 2018
Paid Member
Sorry. For T6 and T6' on Prasi's FH9 XRK mod. Thr silkscreen just says SA92.
Mouser are out of stock of MPSA92 and so I didn't know if the above linked KSA928 was a substitute.
 

Attachments

  • sch.jpg
    sch.jpg
    439.5 KB · Views: 826
Member
Joined 2013
Paid Member
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.
 

Attachments

  • FH11-Schematic-v1.0.png
    FH11-Schematic-v1.0.png
    103.3 KB · Views: 766