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And a couple more for a sanity check.
1. Crosley 9-407, with all circuits connected. Similar early style flyback as Emerson 637 above (the other one which rings down with very few cycles, even though the set works well).
2. GE 805 Locomotive, with all circuits connected. More cycles on this one. This set also works fine.
Still not sure how to interpret the Crosley and Emerson results. Maybe the early style metallic looking core is lossier than more modern ferrite cores? Then why does the Merit HVO-5 NOS flyback not show the same loss? It looks very similar in construction.
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