The 2 oscillator circuits down below are appropriate for using crystal oscillators in sequence or parallel manner: Significant-repetition-rate and substantial-ability picosecond regenerative amplifier depending on one bulk Nd:GdVO4 crystal A timing reference incorporating a single-crystal-silicon micromechanical resonator with a top quality component of larger than one million plus a ... https://dirstop.com/story22129919/5-essential-elements-for-bulk-crystal-oscillator