+VDp L2 +Vp DD (a) (b) Figure 18.34 (a) Hartley oscillator using a JFET; (b) dc equivalent circuit; (c) small-signal model (CGs and Cgp have been neglected for simplicity).

3. An FM broadcast-band receiver tunes from 90.1MHZ to 107.3MHZ. The IF is 12.5MHZ, and the receiver uses low-side injection. The minimum capacitance of the variable capacitor of the local oscillator is 1pF. а. What is the required inductance of the coil which resonates the local oscillator capacitor? b. What is the required maximum capacitance for the variable capacitor of the local oscillator? C. What is the image frequency of 95.7MHZ?

Build an AC RLC circuit a) Choose values for voltage, frequency, resistance, capacitance and inductance. b) Calculate the impedance, phase angle and resonant frequency.

how do this