Why on earth would you want to do that??Has anybody figured out how to convert from mosfet back over to BJT? An MRF477 would be nice.
And, maybe ask your master tech that you promote all the time.
Why on earth would you want to do that??Has anybody figured out how to convert from mosfet back over to BJT? An MRF477 would be nice.
My brand new 959B with the blue displays had driver and final bias set to 4.20v from the factory.Set the bias on a mosfet at 3.5-4 volts, I think they come at 3.5 from the factory!
Every radios different sometimes your spread the coils and sometimes you don't!
Thats whats nice about mosfet is can be a little high and still be ok. You can check the current if they are not drawing too much it probably wont run too hot.My brand new 959B with the blue displays had driver and final bias set to 4.20v from the factory.
If I set the driver and final bias the way the manual says for the bipolar finals, I can't even get 4 watts dead key with the pot turned all the way up. Set them back to 4.20v, I can turn dead key up to 10w. 4.20v seems to me to be the correct voltage.Thats whats nice about mosfet is can be a little high and still be ok. You can check the current if they are not drawing too much it probably wont run too hot.
Are you running a factory single final mosfet? Or a modified bipolar to mosfet conversion? Or dual mosfets? What kind of pep power are you seeing? Normally 3.4v the mosfet is almost fully biased, being high level modulated I wouldnt think the dead key would be affected that much. Does you pep power change with more bias?If I set the driver and final bias the way the manual says for the bipolar finals, I can't even get 4 watts dead key with the pot turned all the way up. Set them back to 4.20v, I can turn dead key up to 10w. 4.20v seems to me to be the correct voltage.
Pep seems to stay the same. It is just a single final 959. Both driver and final bias were set at exactly 4.20v right out of the box.Are you running a factory single final mosfet? Or a modified bipolar to mosfet conversion? Or dual mosfets? What kind of pep power are you seeing? Normally 3.4v the mosfet is almost fully biased, being high level modulated I wouldnt think the dead key would be affected that much. Does you pep power change with more bias?
Yes definitely a good thread bump.bump, checking out my new 959 now.
Welcome and thanks for bumping this, I forgot about it.Awesome info here, THANKS! Wish I could contribute something useful, but just got my 959 & have nothing as of now. Lol