Using a circuit from the RF schematics section, and the formula from the theory sectio you can estimate the resonant frequency for this oscillator
Working out the parallel capacitance, C1 C2, (27*27)/(27+27) = 13.5pFAssuming that the coil, L has an inductance of 0.2uH then: This puts the frequency of oscillation in the middle of the UK FM Band (87.5 - 108 MHz). If an inductor with a core is used, then the oscillator can be tuned by moving the core. If an air spaced core is used, then tuning is achieved by physically squeezing or separating the turns.
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