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Voltage-to-Frequency Converter (VFC) Schematics

The schematics listed below are pdf files.  The Adobe Acrobat Reader is free and available by clicking the link below (if you are unfamiliar with pdf files, try clicking on a schematic first since the reader may already be installed on your machine).  The schematics may take from a few seconds to a minute or two to load, depending on connection speed.

Jim Norman's AD537 Based Temperature Tool VFC-1 (Not Recommended)

Low Parts Count AD537 Based Temperature Tool VFC-2a (See Temp Tool PCBs)
Low Parts Count AD537 Based Temperature Tool VFC-2b (See Temp Tool PCBs)
Low Parts Count AD537 Based Temperature Tool VFC-2 d (See Temp Tool PCBs)
Low Parts Count AD537 Based Temperature Tool VFC-2e (See Temp Tool PCBs)

Low Parts Count AD537 Based Caliper Tool VFC-3 (See Caliper Tool PCBs)

 

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06-05-08
Last 10-20-10