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Wavemeter - Modulation Indicator 380 (77)

Wavemeter - Modulation Indicator 380 ; Simpson Electric Co. (ID = 1547703) Equipment
Wavemeter - Modulation Indicator 380 ; Simpson Electric Co. (ID = 1547005) Equipment  
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Wavemeter - Modulation Indicator 380 ; Simpson Electric Co. (ID = 1547005) Equipment
Simpson Electric Co.: Wavemeter - Modulation Indicator 380 [Equipment] ID = 1547005 715x1082
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For model Wavemeter - Modulation Indicator 380 (77), Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI:
ebay.com #370623162237 seller kosta077
 
Country:  United States of America (USA)
Manufacturer / Brand:  Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI
Year: 1951 Category: Service- or Lab Equipment
Semiconductors (the count is only for transistors) 1N34
Main principle Crystal or Solid State Detector
Wave bands Short Wave (SW only)
Details
Power type and voltage No Power needed
Loudspeaker - only for Earphone!
Power out
from Radiomuseum.org Model: Wavemeter - Modulation Indicator 380 - Simpson Electric Co.; Chicago,
Material Metal case
Shape Very small Portable or Pocket-Set (Handheld) < 8 inch.
Dimensions (WHD) 3 x 5.8 x 2.5 inch / 76 x 147 x 64 mm
Notes

Band-spread wavemeter and 0 - 100 microammeter as resonance indicator. Calibration charts included.

  • separate plug-in coils for 10, 20, 40 and 80 meter bands supplied, coils for other bands available as option.
  • direct-reading Percentage Modulation Indicator with the instrument calibrated at 0 - 110 % modulation
  • designed to function on the 144, 235, 420 megacycle bands without coils but with quarter wave antenna section
  • used as field-strength indicator
  • one copper oxide recitifier, one diode.

Price in 1951, dealer's net, including 4 coils, 2 ft. antenna.
Optional leatherette carrying case, same, $8.00

Marketed in Canada as Model 77.

Net weight (2.2 lb = 1 kg) 2 lb (2 lb 0 oz) / 0.908 kg
Price in first year of sale 37.85 $
Mentioned in -- Original prospect or advert (Catalog 1951)
Literature/Schematics (1) 1951 Newark catalog Nº 51
Literature/Schematics (2) - - Manufacturers Literature (User Manual)

Model page created by Vitor Oliveira. See "Data change" for further contributors.



All listed radios etc. from Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI
Here you find 129 models, 112 with images and 48 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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