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Re: EI9GQ 16 Watt Linear Amp Build #homebrew #linear-amp

 

You might want to consider putting band pass/low pass filter?on the output - push-pulls are known for being "dirty" with third order harmonics. At 16 watts, I doubt you would get in too much trouble, but if you're transmitting happily on 40 and are heard on a segment of 15 where you should not be, even at a half watt or so, it might get you a letter in the mail.
73 de W5ALX
Alex Netherton



On Tue, Oct 5, 2021 at 2:16 PM Dean Souleles <dsouleles@...> wrote:




Hi all - I decided to add some big-boy shoes to my homebrew QRP rig.? I decided to build the 16 watt power amplifier designed by EI9GQ, Eamon Skelton in his book "Building a Transceiver".? The amp used two Mitsubishi RD16HFF1 transistors in a push pull configuration.? On the bench I measured about 13.25 dB gain across the HF bands.? I can't wait to test it in my rig.? This was a fun build an not nearly as difficult as I had imagined,.

Details on the build are on my blog - check it out and follow or like it if you choose.



73,
Dean
KK4DAS


--
Alex Netherton, W5ALX
Buncombe County NC, EM85ro
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