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

 The  test software had the ability to sweep the oven temperature

 Rick  N6RK

 On 4/24/2017 5:41 AM, GandalfG8--- via  time-nuts wrote:

  although

 of  these

 have no

 other  way I

  https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

I've confirmed that the software runs under Windows XP, but having seen it running I don't think I'll be able to do much with it without some form of instructions. However, I'll modify my test set up over the next day or so and see if I can get the software to see an E1938A then take it from there. Nigel, GM8PZR In a message dated 25/04/2017 17:17:59 GMT Summer Time, richard@karlquist.com writes: I know that it will run on Windows 2000. It was originally written on Windows NT4. Rick On 4/24/2017 11:06 PM, GandalfG8@aol.com wrote: > Thanks Rick, I understand better now. > > The turn over label is still on the crystal but not the matching label > on the PCB. > > So far I've not been able to get the software to run but will try > with some older versions of Windows and see how it goes with those. > > Nigel GM8PZR > > In a message dated 24/04/2017 17:28:56 GMT Summer Time, > richard@karlquist.com writes: > > 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. > > > > >