09-03-2019, 06:09 AM
I guess that's a fail on that idea/option.
There is still a possibility that the PCB plus most bits could be used with actual TO-220-style RF power FETs that work at 50MHz. It could still be worthwhile experimenting with the PCB using a pair of RD16HHF1 devices to get 35-40 watts out for 1 watt of drive. The S-parameters of the RD16HHF1 (marketed as a HF device) aren't much different at 50MHz versus 30MHz.
I know it still falls short of the 50-70 watt target... but it's only < 3dB.
There is still a possibility that the PCB plus most bits could be used with actual TO-220-style RF power FETs that work at 50MHz. It could still be worthwhile experimenting with the PCB using a pair of RD16HHF1 devices to get 35-40 watts out for 1 watt of drive. The S-parameters of the RD16HHF1 (marketed as a HF device) aren't much different at 50MHz versus 30MHz.
I know it still falls short of the 50-70 watt target... but it's only < 3dB.
Doug VK4ADC @ QG62LG51
http://www.vk4adc.com
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http://www.vk4adc.com
This Forum is only going to be as interesting as the posts it contains.
If you have a comment or question, post it as it may trigger or answer the query in someone else's mind.