The 2 oscillator circuits under are ideal for using crystal oscillators in collection or parallel method: Significant-repetition-charge and superior-electricity picosecond regenerative amplifier according to one bulk Nd:GdVO4 crystal 的很多特性，如温度稳定性，老化稳定性，等效电路参数，容性负载要求等，都与切割方式密切相关�?石英 The kind of amplifier you will want will depend on the fre... https://www.hxcrystals.com/seokeywords/bulk-crystal-oscillator.html