[GreenKeys] What ever happened to "Pot Cores"?

[Harold Hallikainen]

I believe pot cores are still used in switching power supplies. They are a
lot easier to wind than toroids since the windings are on a small plastic
bobbin. The center pin length can also be adjusted in manufacturing to add
a specific magnetic gap to reduce the chance of core saturation. There is
also a small gap around the outside of the core. These gaps vary in length
with the amount of pressure holding the two sides together. As this
pressure varies with age, the inductance can vary.

But, other than that, I don't know about use of pot cores in audio filters!

Harold
https://w6iwi.org


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