Usually it costs about 30USD-50USD.
HP Agilent 10811E Opt H40 Oscillator 10MHz Frequency Standard
Wenzel Associates 500-18459D/136284-1 Crystal Oscillator SMA(f)-BNC(f) 10MHz/15V
OCXO 10MHz Frequency Standard Reference Module Crystal Oscillator Constant
1M 2M - 4M 5M 6M 8M 10MHz DIP-4P Active Crystal Oscillator Electric Circuit DIY
Bliley NA47A1282 10MHz 5V Sine Wave OCXO Crystal Oscillator
OCXO 10MHz Frequency Reference Module Oscillator Constant Temperature Board New☯
