Q? about the FT-890, what finals and what power output?

[mr_fx]

I have a Yaesu FT-890/at I see a solid 80 watts (pep) or so on my MRJ-962s tuner's meter. However my trusty radio shack shows a bit more

But in looking at the block diagram I see this unit uses twin MRF477 finals and a 2166 driver... now that would make 80 watts pep maxing those finals

but then in the schematic it shows a pair of 2sc2879 and a single 2166 driver

so which is it, and if it's a pair of 2sc2879 finals then surely I could get a little more power out of this thing, maybe 75 pep per final?

 

[bob85]

the 890 uses 2879's, yes you could turn it up past 100w but the bandpass filters won't like it & the difference in signal will be very little.

 

[mr_fx]

the 890 uses 2879's, yes you could turn it up past 100w but the bandpass filters won't like it & the difference in signal will be very little.

good point, I didn't think about that, I guess I will just allow it the headroom it has

man that's a healthy setup then, a pair of 2879s at around 100 pep is like 50% what they could be doing.