>> The Isotemp OSCO 127-10 data sheet says 27 V, but that's +3, -6 >> or 21-30V which straddles both 24V and 28V. [Ugh, typo: OSCO should have been OCXO.] > Where did you find that Isotemp OSCO 127-10 data sheet ? Any other > data on that unit? I don't remember where I got it. A quick google finds this page: http://w9fz.com/ham/sharedrefs.html It has copies of what I have. -- These are my opinions, not necessarily my employer's. I hate spam.