Philips FM92E, Manual

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VCO Ceramic PCB Removed above:
4: Once the board is removed from the module, with a smaller soldering iron, de-solder the coils from the board,
then with a pair of long nose pliers, gently wobble the coil formers free of the board.
Note: That the coils are normally glued down.
When the 2 formers are free, take the old "main" coil and fit it into the "offset" position, then strip the old
Offset coil [remember which way the old offset coil was wound].
If the IF frequency is 21.4 MHz then wind a new one of 8 turns using wire [ 150 mm of enamel coated wire,
0.63mm] [or 146mm of Leon’s enamel coated wire, 0.??mm] of the same size (or as near to it as possible);
plus wound in the same direction as the old offset coil. This coil needs to be wound tightly and be aligned as
per the old one, you may have to distort the ends of the coils to fit them back through the holes. You should
remove the enamel coating on the wire and "pre-tin" the wire with solder before fitting, this will ensure a good
electrical connection for the coils.
If the IF frequency is 10.7 MHz then wind a new one of 8 turns using wire [ 150 mm of enamel coated wire,
0.63mm] [or 146mm of Leon’s enamel coated wire, 0.??mm] of the same size (or as near to it as possible);
plus wound in the same direction as the old offset coil. This coil needs to be wound tightly and be aligned as
per the old one, you may have to distort the ends of the coils to fit them back through the holes. You should
remove the enamel coating on the wire and "pre-tin" the wire with solder before fitting, this will ensure a good
electrical connection for the coils.
Philips FM92E Conversion to 6 Meters: Version 3.9 Page
29