Your simulation is as expected.
My primary objection was that you had stated?
"So, the 12-volt output transformer has two 4.95uH in series linked to a 19.8uH secondary."
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To which I wrote:
"
Looks good except this:? "a 19.8uH secondary"
The 19.8uH was had from the calculation for a 3 turn winding, which is the full primary.
The secondary is 2 turns, so is 8.8uH, not 19.8uH"
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And that is what you simulated.
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I still object to how the 3:2 transformer is wound on the binocular core.
Those extra half turns on each end of the primary do not get coupled to both sides of the binocular core.
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And I object to stuffing L502 into a VMCD amp to get more power.
It also gives bigger voltage peaks on the drains when current from L502 has nowhere to go.
The correct way to get more power is to change the winding ratio to 1:1 on 12v builds.
On 9v builds, including L502 is not so much an issue because voltages are naturally lower.
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My objections are "theoretical".
It may well turn out that the design as is performs better on the bench
than something built the way I think it should be.
I would have no objection to that.
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Jerry, KE7ER
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