Variable Frequency Oscillators (VFOs)
Low frequency VFOs drift less than high frequency VFOs For HF transmitters running on 160 meters (1.8 to 2.0 MHz) or on 80 meters (3.5 to 4.0 ... The values are extremely hard to calculate because C3, C4 and even the 1N914 diode are part of the capacitance. Don’t try too hard to get the values
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