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John's Virtual Museum
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AVO
Avometer 8
Avometer 8 Mk III
AvoMinor
Light Meter
Cambridge Instrument Company
AC Test Set
Decade Bridge 43379
Kelvin Bridge
S Class Resistors
Cropico
ESC1 Electronic Standard Cell
KB5 Four Terminal Resistance Bridge
ND3 Null Detectors
ND4 Null Detector
P10 Vernier Potentiometer
PW4 Resistance Bridge
RS2 Resistance Standard
Voltage Dividing Resistance Box
Fluke
540B Thermal Transfer Standard
720A Kelvin Varley Divider
931B RMS Differential Voltmeter
General Radio Company
1482 Inductors
900-G10 Precision Fixed Attenuator
H Tinsley and Co Ltd
1659 Standard Resistor x4
1682 Standard Resistor
3184D Portable Potentiometer
Drysdale Wattmeter
Resistor Set 3504 series
Spot Galvanometer
Standard Condenser
Volt Ratio Box
Wilkins Resistor 5685A
H W Sullivan
AC Test Set
Decade Capacitance Standard C891/TR
Mica Condensers
R1902 Inductor
S Class Resistor 10000 ohm
T1097 Wheatstone Bridge
Variable Air Condenser
Variable Inductance
Instruments - Various
Advance J-2
Bradley 156 Oscilloscope Calibrator
ESI 242C
Mercury 2000
Muirhead A-411-C
NPL Inductive Voltage Divider
NPL Radio Controlled Clock
Pye 7556
Marconi Instruments
Mercury filled things
Fortin Barometer
Thermometers
Meters - various
Crompton Ammeter
Ether Ltd Thermometer
Evershed and Vignoles "Ducter"
Landis and Gyr CFP7P
Radiometer IM6
Rohde & Schwarz URV5
Optical Gadgets
Agfa Box Camera
Kershaw Eight-20 Camera
Olympus ST-1 Microscope
Praktica TL3 SLR
Sangamo Weston
Sangamo Weston Ammeters
Weston 341 Voltmeter
Tektronix
475 Oscilloscope
Type M plug-in unit
Unusual Gadgets
Cautery
Unidentified Object
Vishay / Mann
Mann Resistors
Vishay Resistors
Welwyn Electric
10 kilohm 5 ppm class resistor
100 kilohm transfer standard
John's Virtual Museum
Unidentified Object
Does anybody know what this is?
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