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Old 21st Feb 2020, 10:04 pm   #12
TrevorG3VLF
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Join Date: Apr 2011
Location: Matlock, Derbyshire, UK.
Posts: 1,378
Default Re: Aerial blocking circuit for TRFs anybody any ideas

A crystal has an equivalent circuit which can accept and reject at two close frequencies. I am sure someone cleverer than me could design a circuit with one inductance and two capacitors to do the same job on MW.
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