); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Bruce, I got it to work, it even locks to -5Hz within 5 minutes and the Amber LED goes off. The problem was that I had only applied GND to the shield of the connector. I added a wire to the EFC pin to EFC return, and connected the three GND pins of the connector, and magically it started working.
Seems one of those "GND" pins is actually a "heater on" type of pin. Now I will do some experiments, it seems EFC should be 2.5V for the output to be on frequency (not 0V). Another interesting observation: my unit has 2.532V on the reference output. I could probably try to locate the reference, and replace it with something more modern and stable. Lastly, the unit seems to have a slow 2-4 second sinusoidial drift in parts to the -11 when measuring it's output on my 53132A after about 10 minutes warmup. Wonder if that's the oven heater control loop... bye, Said ************************************** Get a sneak peek of the all-new AOL at http://discover.aol.com/memed/aolcom30tour _______________________________________________ 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.
