The 2 oscillator circuits beneath are suited to utilizing crystal oscillators in collection or parallel mode: Superior-repetition-price and significant-power picosecond regenerative amplifier determined by only 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 res... https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html