The 2 oscillator circuits beneath are appropriate for applying crystal oscillators in collection or parallel mode: Large-repetition-level and higher-electric power picosecond regenerative amplifier based on one bulk Nd:GdVO4 crystal A timing reference incorporating just one-crystal-silicon micromechanical resonator with a quality variable of greater than one million and also a resonant https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html