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Professional Volt-Ohm-Mil-Ammeter 45

Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 1584318) Equipment
Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 2307706) Equipment Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 1584275) Equipment
Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 2307707) Equipment Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 2307709) Equipment
Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 2307711) Equipment Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 2307712) Equipment
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Professional Volt-Ohm-Mil-Ammeter 45; National Radio (ID = 2307706) Equipment
National Radio: Professional Volt-Ohm-Mil-Ammeter 45 [Equipment] ID = 2307706 1400x1918
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For model Professional Volt-Ohm-Mil-Ammeter 45, National Radio Institute (NRI); Washington, DC:
Picture from Barry Rutkin
 
Country:  United States of America (USA)
Manufacturer / Brand:  National Radio Institute (NRI); Washington, DC
Year: 1947 ? Category: Service- or Lab Equipment
Wave bands - without
Details
Power type and voltage Dry Batteries / 1.5 & 30 Volt
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: Professional Volt-Ohm-Mil-Ammeter 45 - National Radio Institute NRI;
Material Metal case
Shape Portable set > 8 inch (also usable without mains)
Dimensions (WHD) 6.625 x 7.875 x 5.25 inch / 168 x 200 x 133 mm
Notes

Advertised in National Radio News Vol 13 Oct-Nov 1948 No. 5 (Issued by NRI Training headquarters.  Manufactured by the Triplett Electrical Instrument Co.

Ranges:

  • DC Volts (20k Ohm per volt fsd): 3, 12, 30, 300, 1200
  • AC Volts (5k Ohm per volt fsd): 3, 12, 30, 300, 1200
  • Amps 12
  • Milliamperes DC: 1.2, 12, 120
  • Microamps DC: 60
  • Ohms (1.5V): 1,000 (centre =4), 10,000 (centre = 40)
  • Megaohms (30V): 1M (centre = 4k), 100M (centre = 400k)

Batteries: 1 x D cell & 1 x 30V Minimax for Ohms ranges.

Accessories: Leather carrying strap, 50" test leads, alligator clips, instructions.

Detachable cover and "output meter" feature.

 

Net weight (2.2 lb = 1 kg) 5 lb (5 lb 0 oz) / 2.270 kg
Price in first year of sale 39.95 USD

Model page created by Michael Watterson. See "Data change" for further contributors.



All listed radios etc. from National Radio Institute (NRI); Washington, DC
Here you find 19 models, 19 with images and 6 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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