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Again, either of the MRF101 or MRF300 boards I'm developing will need it's own LPF.

https://www.tindie.com/products/ra0sms/automatic-antenna-tuner-7x7-atu-100-mini-by-n7ddc/

https://qrpblog.com/product/f600-160m-4m-600w-low-pass-filter-kit/

https://www.ebay.com/itm/12v-100W-3-5Mhz-30Mhz-HF-power-amplifier-low-pass-filter-Diy-kit/122985102670?epid=8032644407&hash=item1ca27bbd4e:g:3DwAAOSw3HxakWbu

adapt an oldie but goodie
https://www.ebay.com/itm/Icom-IC-751A-Low-Pass-Filter-Unit-Working-Pull/153437049099?hash=item23b98f910b:g:nVsAAOSw7thcBJUd:sc:USPSFirstClass!98146!US!-1

for the receive side

https://www.ebay.com/itm/NEW-Multi-Band-Pass-Filter-HF-6m-Upgraded-version-RTL-SDR-HAM-Transceiver/174132603802?hash=item288b1cab9a:g:j70AAOSwzWFd9l5~

https://www.ebay.com/itm/HF-BPF-band-pass-filter-RTL-SDR-HERMES-ODYSSEY-HiQSDR-Red-Pitaya-transceiver/332074659425?hash=item4d51312e61:g:qNsAAOSwsYpaIB2z

https://www.ebay.com/itm/BPF-band-pass-filter-for-SDR-HERMES-ANAN-10-HF-transceiver/152111322734?hash=item236a8a966e:g:0RcAAOSwgHJZyjz7

and just because

https://www.ebay.com/itm/Kit-of-2-PCBs-for-HF-Power-Amplifier-on-NXP-LDMOS-transistors-for-LPF/324023532689

https://www.ebay.com/itm/PCB-for-HF-Power-Amplifier-LDMOS-MRFX1K80H-MRF1K50H-MRFE6VP/174021791208?hash=item288481cde8:g:IPIAAOSwnqldf0yK

then there is the ...
I've dealt with this "family of sellers" several times on lesser items with good results.

https://www.ebay.com/itm/HF-power-amplifier-pallet-1250W-1-8-54-MHz-LDMOS-MRF1K50H-with-copper-plate/254241907120?hash=item3b31ffa1b0:g:exUAAOSwLYhc57KK

would need of course the usual control and protection circuits from the same sellers or https://www.w6pql.com/parts_i_can_provide.htm

<blockquote data-quote="kopcicle" data-source="post: 698675" data-attributes="member: 46722">Again, either of the MRF101 or MRF300 boards I&#039;m developing will need it&#039;s own LPF.<a href="https://www.tindie.com/products/ra0sms/automatic-antenna-tuner-7x7-atu-100-mini-by-n7ddc/" target="_blank">https://www.tindie.com/products/ra0sms/automatic-antenna-tuner-7x7-atu-100-mini-by-n7ddc/</a><a href="https://qrpblog.com/product/f600-160m-4m-600w-low-pass-filter-kit/" target="_blank">https://qrpblog.com/product/f600-160m-4m-600w-low-pass-filter-kit/</a><a href="https://www.ebay.com/itm/12v-100W-3-5Mhz-30Mhz-HF-power-amplifier-low-pass-filter-Diy-kit/122985102670?epid=8032644407&amp;hash=item1ca27bbd4e:g:3DwAAOSw3HxakWbu" target="_blank">https://www.ebay.com/itm/12v-100W-3-5Mhz-30Mhz-HF-power-amplifier-low-pass-filter-Diy-kit/122985102670?epid=8032644407&amp;hash=item1ca27bbd4e:g:3DwAAOSw3HxakWbu</a>adapt an oldie but goodie <a href="https://www.ebay.com/itm/Icom-IC-751A-Low-Pass-Filter-Unit-Working-Pull/153437049099?hash=item23b98f910b:g:nVsAAOSw7thcBJUd:sc:USPSFirstClass!98146!US!-1" target="_blank">https://www.ebay.com/itm/Icom-IC-751A-Low-Pass-Filter-Unit-Working-Pull/153437049099?hash=item23b98f910b:g:nVsAAOSw7thcBJUd:sc:USPSFirstClass!98146!US!-1</a>for the receive side<a href="https://www.ebay.com/itm/NEW-Multi-Band-Pass-Filter-HF-6m-Upgraded-version-RTL-SDR-HAM-Transceiver/174132603802?hash=item288b1cab9a:g:j70AAOSwzWFd9l5~" target="_blank">https://www.ebay.com/itm/NEW-Multi-Band-Pass-Filter-HF-6m-Upgraded-version-RTL-SDR-HAM-Transceiver/174132603802?hash=item288b1cab9a:g:j70AAOSwzWFd9l5~</a><a href="https://www.ebay.com/itm/HF-BPF-band-pass-filter-RTL-SDR-HERMES-ODYSSEY-HiQSDR-Red-Pitaya-transceiver/332074659425?hash=item4d51312e61:g:qNsAAOSwsYpaIB2z" target="_blank">https://www.ebay.com/itm/HF-BPF-band-pass-filter-RTL-SDR-HERMES-ODYSSEY-HiQSDR-Red-Pitaya-transceiver/332074659425?hash=item4d51312e61:g:qNsAAOSwsYpaIB2z</a><a href="https://www.ebay.com/itm/BPF-band-pass-filter-for-SDR-HERMES-ANAN-10-HF-transceiver/152111322734?hash=item236a8a966e:g:0RcAAOSwgHJZyjz7" target="_blank">https://www.ebay.com/itm/BPF-band-pass-filter-for-SDR-HERMES-ANAN-10-HF-transceiver/152111322734?hash=item236a8a966e:g:0RcAAOSwgHJZyjz7</a>and just because<a href="https://www.ebay.com/itm/Kit-of-2-PCBs-for-HF-Power-Amplifier-on-NXP-LDMOS-transistors-for-LPF/324023532689" target="_blank">https://www.ebay.com/itm/Kit-of-2-PCBs-for-HF-Power-Amplifier-on-NXP-LDMOS-transistors-for-LPF/324023532689</a><a href="https://www.ebay.com/itm/PCB-for-HF-Power-Amplifier-LDMOS-MRFX1K80H-MRF1K50H-MRFE6VP/174021791208?hash=item288481cde8:g:IPIAAOSwnqldf0yK" target="_blank">https://www.ebay.com/itm/PCB-for-HF-Power-Amplifier-LDMOS-MRFX1K80H-MRF1K50H-MRFE6VP/174021791208?hash=item288481cde8:g:IPIAAOSwnqldf0yK</a>then there is the ...I&#039;ve dealt with this &quot;family of sellers&quot; several times on lesser items with good results.<a href="https://www.ebay.com/itm/HF-power-amplifier-pallet-1250W-1-8-54-MHz-LDMOS-MRF1K50H-with-copper-plate/254241907120?hash=item3b31ffa1b0:g:exUAAOSwLYhc57KK" target="_blank">https://www.ebay.com/itm/HF-power-amplifier-pallet-1250W-1-8-54-MHz-LDMOS-MRF1K50H-with-copper-plate/254241907120?hash=item3b31ffa1b0:g:exUAAOSwLYhc57KK</a>would need of course the usual control and protection circuits from the same sellers or <a href="https://www.w6pql.com/parts_i_can_provide.htm" target="_blank">https://www.w6pql.com/parts_i_can_provide.htm</a></blockquote>

[QUOTE="kopcicle, post: 698675, member: 46722"] Again, either of the MRF101 or MRF300 boards I'm developing will need it's own LPF. [URL]https://www.tindie.com/products/ra0sms/automatic-antenna-tuner-7x7-atu-100-mini-by-n7ddc/[/URL] [URL]https://qrpblog.com/product/f600-160m-4m-600w-low-pass-filter-kit/[/URL] [URL]https://www.ebay.com/itm/12v-100W-3-5Mhz-30Mhz-HF-power-amplifier-low-pass-filter-Diy-kit/122985102670?epid=8032644407&hash=item1ca27bbd4e:g:3DwAAOSw3HxakWbu[/URL] adapt an oldie but goodie [URL]https://www.ebay.com/itm/Icom-IC-751A-Low-Pass-Filter-Unit-Working-Pull/153437049099?hash=item23b98f910b:g:nVsAAOSw7thcBJUd:sc:USPSFirstClass!98146!US!-1[/URL] for the receive side [URL]https://www.ebay.com/itm/NEW-Multi-Band-Pass-Filter-HF-6m-Upgraded-version-RTL-SDR-HAM-Transceiver/174132603802?hash=item288b1cab9a:g:j70AAOSwzWFd9l5~[/URL] [URL]https://www.ebay.com/itm/HF-BPF-band-pass-filter-RTL-SDR-HERMES-ODYSSEY-HiQSDR-Red-Pitaya-transceiver/332074659425?hash=item4d51312e61:g:qNsAAOSwsYpaIB2z[/URL] [URL]https://www.ebay.com/itm/BPF-band-pass-filter-for-SDR-HERMES-ANAN-10-HF-transceiver/152111322734?hash=item236a8a966e:g:0RcAAOSwgHJZyjz7[/URL] and just because [URL]https://www.ebay.com/itm/Kit-of-2-PCBs-for-HF-Power-Amplifier-on-NXP-LDMOS-transistors-for-LPF/324023532689[/URL] [URL]https://www.ebay.com/itm/PCB-for-HF-Power-Amplifier-LDMOS-MRFX1K80H-MRF1K50H-MRFE6VP/174021791208?hash=item288481cde8:g:IPIAAOSwnqldf0yK[/URL] then there is the ... I've dealt with this "family of sellers" several times on lesser items with good results. [URL]https://www.ebay.com/itm/HF-power-amplifier-pallet-1250W-1-8-54-MHz-LDMOS-MRF1K50H-with-copper-plate/254241907120?hash=item3b31ffa1b0:g:exUAAOSwLYhc57KK[/URL] would need of course the usual control and protection circuits from the same sellers or [URL]https://www.w6pql.com/parts_i_can_provide.htm[/URL] [/QUOTE]

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