• Year
  • 1944
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 115467

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

 Technical Specifications

  • Number of Tubes
  • 2
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Tube Tester I-177 - MILITARY U.S. different makers
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 5.7 x 15.5 x 8.5 inch / 145 x 394 x 216 mm
  • Notes
  • This was the mutual conductance tube tester used by US Armed Forces since WWII.
  • Net weight (2.2 lb = 1 kg)
  • 8 kg / 17 lb 9.9 oz (17.621 lb)
  • Source of data
  • - - Manufacturers Literature
  Aggiornate il vostro Hickok I-177 2162 KB
  • Documents regarding this model
  • Author
  • Model page created by Emilio Ciardiello. See "Data change" for further contributors.

 Collections | Museums | Literature


The model Tube Tester is part of the collections of the following members.


The model Tube Tester is documented in the following literature.


Forum contributions about this model: MILITARY U.S.: Tube Tester I-177

Threads: 1 | Posts: 10


I have recently purchased a Hickok I-177 tube tester with its expansion box. As the expansion box needed an intense recabling, I am now undergoing the process of adding other European-type sockets not originally present on the board while I’m on the task.
My concern is of course the fact that most European tubes are not listed in the data sheets. I see that a lot of work on this matter has been done by Nolan Lee (that’s why I was willing to <a href="http://www.radiomuseum.org/forum/any_news_about.html">get in contact with him</a>) and other fellows here and there on the net, but many tubes are not yet covered. Just to name one type: tubes with side-contact base.
Since the set up of the ammeter on the I-177 is very easy (one potentiometer only, the other one is fixed once the scale is set to MicroMhos) I was wondering if some of you fellows developed a general method to test tubes when the tube chart is given. Tube charts are easy to find on internet, so they’re no longer a problem.
What about comparing set-up values with the TV-7 model, which seem to have more literature? Is there some kind of conversion procedure to set the I-177 once the setup for the TV-7 is given?
Any comment on this subject is welcome.

Marco Gilardetti, 12.Jan.09

Weitere Posts (10) zu diesem Thema.