To All,
The final modification of the Fluke null meters with LED's is completed.
The results is impressive, keeping the basic original circuit of the
meters. My rev 8 AR version has a double diode in the output stage which
seems to remove the zeroing hysteresis around a zero reading was also
made to my 845AB. Implementing two 1.2v reference diodes in the zeroing
circuit greatly improved the zero drift for the zeroing control. There
were also changes to the feedback response by changing two capacitors.
If anyone is interested, please E-mail me at my personal address.
[email protected]
Dallas
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