[Joeztech]

In a Philco 41-280, -286, -287 or -290 radio chassis the 1st IF transformer at the plate of the 1st Detector (mixer) the schematic appears to show an adjustable ferrite core in the primary with a fixed capacitor value, while its secondary that drives the 1st IF amplifier grid has an adjustable trimmer capacitor. I am working on cleaning up the Rider's schematic for these units for a friend and just need to know for sure if I am interpreting the schematic correctly.

Some of you have probably worked on one of these and knows the answer.

Thanks in advance.

Joe