Re: RF power chain mods and improvements..
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Thanks Allison.? I was assuming that the 20 volt max Vceo for the 5109 might disqualify it based on your earlier post regarding the Bf199 with its 25 volt breakdown spec. Mike K5ESS ?
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From: [email protected] [mailto:[email protected]] On Behalf Of ajparent1/KB1GMX
Sent: Sunday, May 20, 2018 2:03 PM
To: [email protected]
Subject: Re: [BITX20] RF power chain mods and improvements.. ? Mike,
Since I've been dealing with the Raduino problem I can't answer yet.
However what I feel is you are asking;? "should I use XXX or YYY?".
My answer is what do you think?? ?If you do let us know your results.
Why is my answer that way, I have NOT TESTED IT YET but plan to.
All of those parts are on my candidates list way back yesterday.
Q90 if biased at 10-15MA would be better served with a 2n2369A as its a 600mhz
part and I've used it elsewhere with good behaviour.? I was testing that when
Raduino burped.? So It looks ok but more testing needed.
Allison
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