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Logarithmic Amplifier 91H03

Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2008254) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012708) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012709) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012710) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012711) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012712) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012713) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012714) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012715) Misc
 
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2012716) Misc
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2008785) Misc Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2008147) Misc
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2008148) Misc Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2008156) Misc
Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2008253) Misc
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Logarithmic Amplifier 91H03; Disa Elektronik A/S; (ID = 2008785) Misc
Disa Elektronik A/S;: Logarithmic Amplifier 91H03 [Misc] ID = 2008785 840x1200
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For model Logarithmic Amplifier 91H03, Disa Elektronik A/S; Copenhagen:
DISA 91H03 front panel. Rotary switch is for calibration/operation, operator has a choice to check noise level of the system by adding 40 dB sensitivity to the meter.
 
Country:  Denmark
Manufacturer / Brand:  Disa Elektronik A/S; Copenhagen
Year: 1960 ?? Category: Miscellaneous (Other, Various) - see notes
Valves / Tubes 2: EBF80 EBF80 90C1 150C2
Main principle Audio-Amplification
Wave bands - without
Details
Power type and voltage Alternating Current supply (AC) / 110; 220 Volt
Loudspeaker - - No sound reproduction output.
Power out
from Radiomuseum.org Model: Logarithmic Amplifier 91H03 - Disa Elektronik A/S;
Material Metal case
Shape Rack
Dimensions (WHD) 93 x 134 x 250 mm / 3.7 x 5.3 x 9.8 inch
Notes

Logarithmic amplifier for DISA light spot level meter. PPM level meter. 

  • input: +6dBu, 600 ohm
  • Output: 3 mA for moving coil instrument (mirror galvanometer)
  • 6,3V 15 watt for lamp of the light spot meter

Internal calibration supply generated from 12 VAC secondary of the power transformer, stabilized with a light-bulb bridge. 

Literature/Schematics (1) - - Manufacturers Literature (Complete service manual for DISA 19H series log amplifiers and 91D and 91G series light spot meters)

Model page created by Matti Adolfsen. See "Data change" for further contributors.



All listed radios etc. from Disa Elektronik A/S; Copenhagen
Here you find 4 models, 2 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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