doing a search on google tells me that this is a 144MHz 80W output amplifier
with a 1-4W drive from a handheld tranceiver.
are you getting 80W out with 4W of drive ? if so then thats all you are going to get
without killing it .... if you want more power, then buy a bigger amplifier !!!
the amplifier has 2 transistors in it a 2SC1946 driver with ~ 4 W in gives ~ 28W out
and the Final which is a 2SC2694 which is rated at ~ 75 W out with 28W of drive
increasing output... even if it was possible ... to 100W is NOT going to give you any
significant signal strength at some one's receiver
REMEMBER to increase one "S" point on an S meter you require a 6dB increase in
power .... 6dB is 4 times the power level ie. in your case you would have to go from
80 Watts to 320 Watts of power output......
as I said earlier you need to buy a bigger amp to make a significant difference to someone's S meter
Dave
VK2TDN