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L1 will short the gate to ground for DC, but that is fine. Q1 is a JFET that work when the gate is negative compared to the source and the drain is positive compared to the source.
This circuit gets those voltages correct.
At the transmitting frequency, L1 is tuned with C1 (mainly) so the impedance to the desired frequency is quite high.
L1 will short the gate to ground for DC, but that is fine. Q1 is a JFET that work when the gate is negative compared to the source and the drain is positive compared to the source.
This circuit gets those voltages correct.
At the transmitting frequency, L1 is tuned with C1 (mainly) so the impedance to the desired frequency is quite high.
L1 will short the gate to ground for DC, but that is fine. Q1 is a JFET that work when the gate is negative compared to the source and the drain is positive compared to the source.
This circuit gets those voltages correct.
At the transmitting frequency, L1 is tuned with C1 (mainly) so the impedance to the desired frequency is quite high.
L1 will short the gate to ground for DC, but that is fine. Q1 is a JFET that work when the gate is negative compared to the source and the drain is positive compared to the source.
This circuit gets those voltages correct.
At the transmitting frequency, L1 is tuned with C1 (mainly) so the impedance to the desired frequency is quite high.
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