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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.

Old GO COSMOS Tool Schematic

GO COSMOS Replacement Low Voltage Power Supply   (See 106 Too™l PCBs)

GO COSMOS PMT Voltage Divider for 1-1/8" Tubes   (See 106 Tool™ PCBs)

GO COSMOS Stock Scintillation Gamma Ray Preamp

GO COSMOS Improved "Hot" PMT (R-268, etc.) Scintillation GR Preamp

GO COSMOS Geiger-Mueller Gamma Ray Preamp   (See 106 Tool™ PCBs)

GO COSMOS Anti-Coincidence Circuit   (See 106 Tool™ PCBs)

GO COSMOS Tool Discrete Component Line Driver (Dual Channel)

GO COSMOS Replacement CCL Amplifier   (See 106 Tool™ PCBs)

Also see this webpage:  GO / GOI / MLS COSMOS Tool Notes.

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08-27-07
Last 10-18-10