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Cannot Adjust an IF Transformer’s cores
#1

Good afternoon, folks:

    I am restoring a Philco 49-906 and have run into a minor roadblock. Namely, I cannot align the FM circuit in full because the screws to adjust the first FM IF transformer are stuck in place. Peering into the top hole, it looks like the screw head is stripped. Has anyone run into this before, and how have you resolved it? I can imagine I need to desolder and remove the unit, open up the can, and somehow file a new flat-head groove into the screw head. Has anyone worked out a less invasive solution?

This is a Philco 32-4257 part (first FM IF can, 9.1MHz) and is labeled as TC-300A and TC-300B on the schematic.


Messages In This Thread
Cannot Adjust an IF Transformer’s cores - by jrblasde - 07-25-2024, 04:59 PM
462ron - by 462ron - 08-01-2024, 07:33 AM
462ron - by 462ron - 08-01-2024, 08:44 AM
462ron - by 462ron - 08-02-2024, 08:09 AM
462ron - by 462ron - 08-03-2024, 07:49 AM
462ron - by 462ron - 08-04-2024, 08:15 AM
462ron - by 462ron - 08-08-2024, 08:02 AM
462ron - by 462ron - 08-10-2024, 08:33 AM
462ron - by 462ron - 08-10-2024, 09:38 AM
462ron - by 462ron - 08-12-2024, 07:42 AM
462ron - by 462ron - 08-25-2024, 08:27 AM



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