The above data sheets are rated at 12.5 volts DC in a test jig.
The question was dead key, and I agree with the 25 watts per device carrier level.
Pep is an entirely different story.
There is a thread here were W8JI was able to make a single Toshiba produce over 250 watts in a test jig.
Here, went and found it.
Quote w8ji
"Just out of curiosity I bolted up a single 2SC2879 in class C (zero bias) in a single ended amplifier with resonant transformer. Heatsink is massive and I used a soft copper gasket for better heat transfer, no grease.
On 5 MHz I can easily push it to 30 amps Ic at 18 volts and get almost 300 watts output. At about 30 amps my supply shuts down. I didn't filter the output beyond the resonant transformer but the 2nd harmonic was about 15 dB down and 3rd harmonic much less level than that. Harmonics were pretty much gone after the third. The harmonics clearly contribute less than 10% to the output measured.
The statement a single 2SC2879 can produce 250 watts is accurate, so long as linearity and long term reliability are not factors, and the 250 watts does not have to be "harmonics" or things that mislead power meters (although this could be true in some cases)."
Note this:
The harmonics clearly contribute less than 10% to the output measured.
And he was testing at 18 volts, not 12.5.
Can't say this is for HG transistors but you could drive the original Toshiba's well beyond the spec sheet numbers.
73
Jeff
