I've done some investigation and come up with 2SA1116 and 2SC2607(woodang) as substitutes for the NMA1012/NMC1012. Are these sufficent replacements? Has anyone used them? Thanks, Jim.
I know nothing about electronics but do have an invoice from work done on my AU 919 that lists the following: 8 Power Output Transistors MJ15024 / MJ15025.
This doesn't answer your question but my help. I can tell you that I am very happy with this upgraded amp.
Jim I used On-semi MJ21193 MJ21194's as replacements in my 919 with good results, i think outhers have used them also, I'm sure outhers will chime in on this englissa
I've done some investigation and come up with 2SA1116 and 2SC2607(woodang) as substitutes for the NMA1012/NMC1012. Are these sufficent replacements? Has anyone used them? Thanks, Jim.
The other advantage of the ON semis is the odds of counterfeits are a lot less. Most of the old Japanese TO-3 transistors have been out of production for many years and the parts purporting to be NOS are fakes.