![]() The tuning circuit, which consists of L105, L104, variable capacitor D105 and D104, L103, L102, variable capacitor D103 and D102, is controlled by the tracking voltage from the VCO. The signal from Q107 is then passed through the tuning circuit (L103, L102, and variable capacitor D103, D102) and converted into 21.7MHz by the mixer (Q106). The received signal at any frequency in the 136.000MHz to 173.995MHz range is passed through the low-pass filter (L116, L115, L114, L113, C204, C203, C202, C216 and C215) and tuning circuit (L105, L104 and D105, D104), and amplified by the RF amplifier (Q107). The receiver system is a double super-heterodyne system with a 21.7MHz first IF and a 450kHz second IF. ![]() ! NOTE : All specifications are subject to change without notice or obligation. Transistor, Diode and LED Outline Drawing. ![]()
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January 2023
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