Man, I need to pop in here and read the threads more often... Just been so busy.
Looks like someone tried to do my NPC/RC mod, with less than favorable results.
A few points to bring up...
This HAS to be done with an o'scope, a signal generator, and a spectrum analyzer. Not a power meter.
The AMC is not disabled, nor is it modified in my mod.
The AMC was not properly adjusted in this case.
It is not necessary to replace the C1419 with a TIP41C, but TIP41C's are cheap, and can run cooler.
R228 doesn't have to be changed, it can be left alone, but I've found that changing it to 1.5K yields a small improvement.
Changing or removing R131 is modifying the AMC circuit, and is a waste of time.
I'll get back to this when I have time.
~Cheers~