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  • Description is exactly "R-Meter gauge in mahogany wood housing, donated to SLAC by former director Burton Richter. The rate-meter (R-Meter) was installed in the SPEAR control room in 1974. The R-meter consists of an old Weston voltmeter and a digital-to- analog converter. It measured the rate at which new quarks were created in the SPEAR Mark II detector. The R-meter was featured in an article in SLAC Today, Nov 10, 2006 Dimensions are 19 inches L x 14 inches W x 4.5 inches H"

2008-078 Special Collection: R-Meter

R-Meter gauge in mahogany wood housing, donated to SLAC by former director Burton Richter. The rate-meter (R-Meter) was installed in the SPEAR control room in 1974. The R-meter consists of an old Weston voltmeter and a digital-to- analog converter. …