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The link you provided for broadband combiners covers a lot of useful information. Things like that 4 port combiner would surprise people who have never seen a 8 transistor amplifier with only a single RF splitter and one output combiner. Something that has been done on high end RF generators for decades. My area of interest concerned the combining of single ended amplifier stages. Something I have never seen on HF before doing it myself. Although, I have seen it on VHF in some higher power 2 way communications equipment and that's what gave me the idea to apply the same method on HF. Two transistors combined in a single ended configuration provide twice the power handling capacity and output as two in push-pull.

[QUOTE="Shockwave, post: 675965, member: 10882"] The link you provided for broadband combiners covers a lot of useful information. Things like that 4 port combiner would surprise people who have never seen a 8 transistor amplifier with only a single RF splitter and one output combiner. Something that has been done on high end RF generators for decades. My area of interest concerned the combining of single ended amplifier stages. Something I have never seen on HF before doing it myself. Although, I have seen it on VHF in some higher power 2 way communications equipment and that's what gave me the idea to apply the same method on HF. Two transistors combined in a single ended configuration provide twice the power handling capacity and output as two in push-pull. [/QUOTE]

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