08-15-2026, 09:35 AM
Hi Joe,
From your description, I'm guessing it's the Philco IF trap where a coil of 8 turns is wrapped around a 0.1mfd capacitor (from memory, I'm thinking a smaller value) and wired in series with it. This creates a series resonant circuit of about 455kHz, shorting stray interfering IF signals to ground. You can either duplicate the part or just use the capacitor alone or leave it out of the radio. Sometimes having it in removes some of the noise interference. A poly cap is fine. Safety cap is much more expensive for this purpose.
From your description, I'm guessing it's the Philco IF trap where a coil of 8 turns is wrapped around a 0.1mfd capacitor (from memory, I'm thinking a smaller value) and wired in series with it. This creates a series resonant circuit of about 455kHz, shorting stray interfering IF signals to ground. You can either duplicate the part or just use the capacitor alone or leave it out of the radio. Sometimes having it in removes some of the noise interference. A poly cap is fine. Safety cap is much more expensive for this purpose.
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