The two oscillator circuits down below are appropriate for using crystal oscillators in sequence or parallel manner: Substantial-repetition-level and higher-electric power picosecond regenerative amplifier based on an individual bulk Nd:GdVO4 crystal A timing reference incorporating one-crystal-silicon micromechanical resonator with a quality aspect of more substantial than a million ... https://my-social-box.com/story4355323/an-unbiased-view-of-bulk-crystal-oscillator