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Old 23rd Jan 2019, 10:51 pm   #4
MrBungle
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Join Date: Jun 2016
Location: London, UK.
Posts: 3,687
Default Re: Homebrew SSB Transceiver

If you're going to use a MOSFET watch out for a little gotcha. If there's a big cap on the output of the power supply and one on the input of the amp, the current dump from the former to the latter via the MOSFET can exceed Ids of a lot of "ballpark" MOSFETs and let the magic smoke out.

I would just leave the PA with standing current running and just switch the RF in on TX. I'm doing this with my slightly lower wick 25W CW amplifier. Idle current is about 100mA though the PA IRF510.
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