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Dynamometer AC/DC Voltmeter S6B

Dynamometer AC/DC Voltmeter S6B; Sangamo Weston (ID = 1458969) Equipment
Dynamometer AC/DC Voltmeter S6B; Sangamo Weston (ID = 1458966) Equipment Dynamometer AC/DC Voltmeter S6B; Sangamo Weston (ID = 1458968) Equipment
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Dynamometer AC/DC Voltmeter S6B; Sangamo Weston (ID = 1458966) Equipment
Sangamo Weston: Dynamometer AC/DC Voltmeter S6B [Equipment] ID = 1458966 900x928
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For model Dynamometer AC/DC Voltmeter S6B, Sangamo Weston Limited; Enfield (Middlesex)
Country:  Great Britain (UK)
Manufacturer / Brand:  Sangamo Weston Limited; Enfield (Middlesex)
Year: 1954 ? Category: Service- or Lab Equipment
Wave bands - without
Power type and voltage No Power needed
Loudspeaker - - No sound reproduction output.
Power out
from Model: Dynamometer AC/DC Voltmeter S6B - Sangamo Weston Limited;
Material Bakelite case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 293 x 160 x 225 mm / 11.5 x 6.3 x 8.9 inch

This voltmeter uses the dynamometer principle to enable AC and DC voltage measurements. The three ranges are 30V, 150V and 300V full scale deflection. It is a laboratory-grade instrument, with a mirror scale and calibration tracable to the Absolute Volt,  accurate to 0.25% of full scale. There is an internal shield to guard against external magnetic fields.

The calibration certificate provides polynomial correction equations for each of the three ranges for temperature if not 20 degrees Celcius and for frequency. Using the frequency correction, readings are accurate to 1% to 1000 Hz (measured May 2013).

The sensitivity of the instrument is low, at 15 ohms per volt.

Net weight (2.2 lb = 1 kg) 6 kg / 13 lb 3.5 oz (13.216 lb)

Model page created by Gwyn Griffiths. See "Data change" for further contributors.

All listed radios etc. from Sangamo Weston Limited; Enfield (Middlesex)
Here you find 3 models, 3 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.