[time-nuts] Thunderbolt temperature anomaly

[Stan, W1LE]

Hello Maury,

A Lady Heather screen grab would be helpful in understanding the issue.

How is the power supply doing ?

I once had a flakey power supply that gave me abnormal readings.

Stan, W1LE     Cape Cod


msproul wrote:
> I have a Tbolt  (labeled Rev. E, 5/31/05) that seems to be working 
> properly, except for the
> temperature display in Lady Heather. When I start the program the 
> display will come up
> typically showing the temperature as a straight line at 39.749981C and 
> DAC voltage is -0.073xxx.
> The temperature and DAC will remain at these values for hours. 
> Occasionally
> the temperature will change to 40.749981 or 38.749981. Rarely, it will 
> go to 37.749981.
> In all cases, when the temperature shifts it occurs over a few minutes 
> and is
> a series of saw-tooth steps. It then remains as a straight line for 
> hours.
> Except during the transition, the temperature is always xx.749981.
>
> What could cause this and does it indicate any serious problem?
>
> Other Lady Heather plots I have seen show the temperature plot
> being similar to a sine wave following the small temperature changes.
>
> Thanks for any comments/suggestions.
>
> Maury
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to 
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>