A simple stereo tv decoder circuit build with MC1310P. Transistor Q1 is an audio amplifier and U1 is used as a 31.5KHz subcarrier which is similar to 38KHz FM MPX. Pilot frequency is 15.734KHz.
The MC1310P is used in the SAE 3200 Stereo FM tuner. There are newer and better IC’s today. LM4500 ? Bob in the FM Tuner group makes a kit with PC board for this one. Ed
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