To All,
Anyone who received the RTF file for the Fluke meter mod, the latest
revision can be found at ko44's FTB server.
This will be the final source for the modifications.
Dallas
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.
Dallas
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