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WW2 Type H ACWEECO Universal AVO Minor Moving Coil Multimeter Air Ministry REF 10S/16

WW2 Type H ACWEECO Universal AVO Minor Moving Coil Multimeter Air Ministry REF 10S/16

AVO (ACWEECO)

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WW2 Type H ACWEECO Universal AVO Minor Moving Coil Multimeter Air Ministry REF 10S/16

This amazing little gadget is a 1940s WW2 Type H ACWEECO Universal AVO Minor Moving Coil Multimeter Air Ministry REF 10S/16 made for the RAF.

A wonderful piece of electronic history, it does appear to be working but is being sold as a collectible only. It comes with a 3mm red and a 3mm black probe and the original Air MInistry stamped leather transit case (AM 10S/48). 

It measures:-

  • DC Volts: 5, 25, 100, 250, 500 
  • DC mA: 2.5, 5, 25, 100, 500 
  • AC Volts: 5, 25, 100, 250, 500 
  • Non-linear scale for 5 volts A.C
  • Resistance 0- 20k ohm

The instrument was designed to take an EverReady U10 battery, which is now obsolete, and is not included.  An AA cell could be used with, for example, a spacer or modified spring. 

Serial number U76817-545

The meter is in very good cosmetic condition with superficial surface blemishes. 

  • AVO Minor Meter: (AcweecoAutomatic Coil Winder And Electrical Equipment Co. Ltd)
  • Manufacturing Date: 1940s
  • Labelled with the Air Ministry crown, and the RAF stores number 10S/16 where 10S= Radio (Wireless and Radar) Test Equipment
  • Meter Type: Moving Coil Multimeter measures in milliamps and volts
  • Body: Black 
  • Metal label screwed on the rear with the Instructions For Use
  • Approximate Meter Size (W.H.D): 12 cm  x 9.6 cm x 4.6 cm 
  • Made in England by The Automatic Coil Winder And Electrical Equipment Co. Ltd, Winder House, Douglas Street, London S.W.1
Please click on the following link for more vintage tests, measures and meters.
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