The MV83M from Morion, Inc. is a OCXO with Frequency 5 to 10 MHz, Supply Voltage 12 V, Phase Noise -158 to -155 dBc/Hz, Phase Noise 1 kHz -155 to -150 dBc/Hz, Phase Noise 10 kHz -158 to -150 dBc/Hz. Tags: DIP. More details for MV83M can be seen below.