Thread: KB ER30 radio
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Old 12th Jul 2018, 3:23 pm   #14
ms660
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Default Re: KB ER30 radio

Quote:
Originally Posted by crackle View Post
There is a RF choke across the aerial and earth terminals, is this an IF trap or something else.

Mike
I'm not absolutely sure but it might be performing a similar function as a high impedance primary in a conventional transformer coupled antenna/RF circuit, where by the inductor and its self capacitance in conjunction with any of the receivers input capacitance and the antenna capacitance broadly resonates below the low end of the MW band in order to help give a more even response across the whole tuning range.

Lawrence.
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