The trick is to use a thin and long peace of wood with some material removed with a knife or thin file on top a bottom.
The long wire is wound on this peace of wood several turns.
Every turn on the toroid is made by passing this peace of wood through the toroid to make great Pleiades microphone filters or input or mixing transformers.
The long wire is wound on this peace of wood several turns.
Every turn on the toroid is made by passing this peace of wood through the toroid to make great Pleiades microphone filters or input or mixing transformers.
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