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QCX post build testing 33 #bias #dummy #problem

I couldn't agree more. Plus an added bonus of having a community of people who have built the same kit, that can help point you in the right direction is valuable. This is especially true for someone

By Ryan Laurie ·

#bias #dummy #problem

10 w amp issues 23 #bias

All, I sincerely hope that it wasn't taken as criticism. Admittedly it was my own misunderstanding. This kit was a joy to build, and I'm excited to integrate it into my own design. After building a QC

By AB9LM ·

#bias

Minimizing U3S (2 meters) current consumption 2 #u3s #bias

Hello Halden This often happens when using the unit on VHF where the BS170 has to work a lot harder - you need higher idle current to get good power output. Yes correct I believe that would work fine.

By Hans Summers ·

#u3s #bias

New 5w HF PA addition to U3S 2 #bias #u3s

I would say no. In that configuration I think it's better to run only 1 BS170 at 5V. Generally that will give you 200 mW out of the U3S on 40m and probably 30m as well. --Al WD4AH

By Al Holt ·

#bias #u3s

Ultimate3S to PA voltage instead of 5V 5 #bias

Hello Daniel. You sort of can using what I call the "burnt finger tip method". The clues in the name. To get a ball park figure, I use my index finger to monitor the temp of the BS170.. Adjusting the

By James Anderson ·

#bias

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