Appendix 2
Inductance Values of Oscillator Coils and Intermediate-Frequency (IF) Transformers

FIGURE A2-1 Pin-out of coil.

TABLE A2-1 AM Radio Oscillator Coils

TABLE A2-2 AM Radio IF Transformer Without Internal Capacitor, Nominally Used at ~455 kHz

TABLE A2-3 FM Radio IF Transformer Without Internal Capacitor, Nominally Used at ~10.7 MHz

IF Transformer with Internal Capacitor Removed

FIGURE A2-2 Example IF transformer with internal capacitor removed.

TABLE A2-4 AM Radio 455-kHz IF Transformers with Internal Capacitor Removed

TABLE A2-5 FM Radio 10.7-MHz IF Transformers with Internal Capacitor Removed