The 2 oscillator circuits underneath are ideal for using crystal oscillators in sequence or parallel mode: Significant-repetition-amount and high-electricity picosecond regenerative amplifier based on one bulk Nd:GdVO4 crystal A timing reference incorporating just one-crystal-silicon micromechanical resonator with a high quality variable of bigger than one million and a resonant frequ... https://gogogobookmarks.com/story18945922/bulk-crystal-oscillator-for-dummies