Test Set Electronic Valve C.T.160

AVO Ltd.; London

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  • Year
  • 1960
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 113160

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 2
  • Valves / Tubes
  • D77
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 105-120; 175-250 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Test Set Electronic Valve C.T.160 - AVO Ltd.; London
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 255 x 295 x 370 mm / 10 x 11.6 x 14.6 inch
  • Notes

  • Static and Dynamic Characteristic (Mutual Conductance (mA/V))

    Anode Volts: 20, 40, 60, 75, 90, 100, 150, 200, 250, 300, 400V
    Screen Volts: 20, 40, 60, 75, 90, 100, 125, 150, 200, 250, 300V
    Neg. Grid Volts: 0 / -40V adjustable
    Anode Current: 0 / 90mA & 0 / 10mA
    Set mA/V: 1, 20mA/V slop control
    Mains Voltage Selector: 110, 180, 200, 220, 240V & -5 / 0 / +5 / +10V
    Heater Volts Switch 0,625 -117 position:
    0,625 /1,25/ 2,0/ 2,5/ 4/ 5/ 6,3/ 10/ 11/ 13/ 16/ 20/ 25/ 30/ 48/ 70/ 117V
    Heater Volts Switch 1,4 - 80 position
    1,4/ 3/ 4,5/ 5,7/ 12,6/ 15/ 18/ 23/ 28/ 35/ 45/ 55/ 80V

  • Net weight (2.2 lb = 1 kg)
  • 11 kg / 24 lb 3.7 oz (24.229 lb)
  • Literature/Schematics (1)
  • - - Data from my own collection
  • Author
  • Model page created by Hernani Capela. See "Data change" for further contributors.

 Collections | Museums | Literature

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The model Test Set Electronic Valve is part of the collections of the following members.

 Forum

Forum contributions about this model: AVO Ltd.; London: Test Set Electronic Valve C.T.160

Threads: 1 | Posts: 3

Dear members,

For a few days I'm trying to calibrate my AVO CT160 valve tester. I downloaded all the mauals and articles I could find, read the calibration parts several times. Did the calibration step by step.  I checked all the resistors in the instrument (up till now I didn't check the capacitors and potmeters). Replaced the calibration resistors R3 and R4. And last but not least I made a calibration tube (ECL80) in the way it is described in the AVO manual. Checking the instrument with my new made calibration tube I found out that on the low end the Ia measurements from the AVO is a little to high (10%). In the middel it is oke and with higher Ia settings values from the AVO are lower (15%) than expected. Gm measurement is fine. Anyone who has experience with calibration of a AVO CT160? A little help is appreciated.

Regards,

Paul

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Paul Cornelissen, 03.Nov.08

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