[time-nuts] Some pics of the Datron 491x DC reference cell

[Dr. Frank Stellmach]

 > NB use the latest datasheet which has a corrected schematic showing the
 > location and polarity of the parasitic diodes.

> Bruce

Thank you, I already got that...

When I used the first datasheet, I reversed the heater as there was no hint, just to discover those hidden parasitic diodes.
I obviously did not damage the device (hope so), but sent that info to LT, and then they did the correction.

Frank