Portable moving-coil 3-inch recording voltmeter/ammeter

Made:: 1960-1979

Portable moving-coil 3-inch recording voltmeter/ammeter type GR303/11 serial no. K9385/A1, by Record, speeds 1 inch and 6 inches per hour, ranges 75mV, 150mV, 9mA and 10mA

Details

Category:: Electricity and Magnetism

Object Number:: 1992-509

type:: voltmeter - moving coil and ammeter - moving coil

credit:: Eastern Electricity. Appliance Testing L

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Parts

Range multiplier for Record portable recording voltmeter/ammeter no. K9385/A1

Range multiplier for Record portable recording voltmeter/ammeter no. K9385/A1, input ranges 150V and 600V d.c., 150V, 600V, 20mA, 1A, 5A and 10A a.c., plus X1 and divide-by-two range switch, outputs 9mA and 75mV full scale

Object Number:: 1992-509 Pt1

type:: multiplier

Range multiplier for Record portable recording voltmeter/ammeter no. K9385/A1

Range multiplier for Record portable recording voltmeter/ammeter no. K9385/A1, input ranges 750mV, 1.5V, 3V, 7.5V, 15V and 30V d.c., and a.c. switched ranges of 3V, 7.5V, 15V and 30V, outputs 10mA and 9mA