The main issue is that the oven will no longer be at the crystal turnover temperature. If you are using it in a benign environment, you might not need the extreme thermal performance enabled by being dead nuts on the turnover. You still have an oven with thermal gain in the 100's of thousands.
The test software had the ability to sweep the oven temperature and allow you to find the turn over. There was some way to then set the oven to this temperature. I don't know if anyone currently knows how to make the software do this anymore. I knew at one time, but have long forgotten. Rick N6RK On 4/24/2017 5:41 AM, GandalfG8--- via time-nuts wrote:
I've just received an Ebay purchased E1938A, haven't tested it yet although I do have a 14 day return option, but unlike previous purchases of these the serial number label is missing from the rear of the PCB so I have no obvious way of knowing if the crystal is matched to the PCB. Does anybody know if there's any embedded information that can be accessed that indicates the serial number of the board, or is there any other way I can check if the crystal and PCB are matched? If not, what issues could I expect from an unmatched crystal and PCB? Nigel GM8PZR _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
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