The 2 oscillator circuits beneath are well suited for working with crystal oscillators in series or parallel manner: Large-repetition-level and large-power picosecond regenerative amplifier based on an individual bulk Nd:GdVO4 crystal A timing reference incorporating a single-crystal-silicon micromechanical resonator with an excellent variable of more substantial than a million and https://webookmarks.com/story4481579/5-simple-techniques-for-bulk-crystal-oscillator