Well I learned an important lesson tonight (this is why we prototype and test).? Those T50-1 cores I was using for the auto tuner are not gonna work.? They saturate at 64 watts PEP and then cause side IMD products above that power level.? I’ve moved up to the T80 cores which are good to over 120 watts.? I also found a great source for latching relays…$0.75 each in quantity 100 (cheaper in 500 and 1,000) so can keep this low power!? I built the Discriminator using an AD8302 and it works perfectly for phase and amplitude detection. ?

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This also leads me to wonder how Hans Summer can claim that his LPF’s are good to over 100 watts…? I have a few and will test that theory.

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I’m starting a blog for updates on the design and build so I don’t take up bandwidth here.

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Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ

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Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois

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Owner – Operator

Villa Grand Piton – J68HZ

Soufriere, St. Lucia W.I.

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email:? bill@...

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