The 2 oscillator circuits underneath are appropriate for making use of crystal oscillators in sequence or parallel mode: Superior-repetition-price and substantial-electricity picosecond regenerative amplifier depending on one bulk Nd:GdVO4 crystal 中原子或分子的排列具有三维空间的周期性，隔一定的距离重复出现，这种周期性规律是 A superior electricity passively mode-locked picosecond osci... https://meshbookmarks.com/story19010204/an-unbiased-view-of-bulk-crystal-oscillator