Tube Tester TV-7 U

MILITARY U.S. (different makers for same model)

Data
Forum
Pictures
Collections

  • Year
  • 1953 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 68935

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) / 105-125 Volt
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Tube Tester TV-7 U - MILITARY U.S. different makers
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 440 x 220 x 155 mm / 17.3 x 8.7 x 6.1 inch
  • Notes

  • Tube Tester TV-7 /U.
    This model /U was built by Supreme.
    This model was also produced for NATO by Lorenz, Germany.

  • External source of data
  • Ralf Sürtenich
  • Literature/Schematics (4)
  • -- Schematic

 Collections | Museums | Literature

Collections

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

 Forum

Forum contributions about this model: MILITARY U.S.: Tube Tester TV-7 U

Threads: 3 | Posts: 8

I have created several adaptators for m'y TV7/U:

rimlock

transco

english (for ARP3)

Telefunken (ECH11 etc...)

european 4 or 5 pins (E442  E409 etc..)


 

 

Attachments

Olivier Palix, 20.Sep.24

Weitere Posts (1) zu diesem Thema.

I have a TV7/U,it use a bulb as a fuse.It is important to use the correct type: 81,(6,5V,1,02A;6,6W).

I have found that types 81 & 47 (pilot lamp) bulbs are used in Gottlieb flippers, so it is easy to buy them at sellers  of flippers spares parts  (in France there is one on Ebay.fr,he sell box of 10  at very reasonnable price)

On the picture,the; yellow bulb is original (GE81),he silver one is a 81 for flipper (exactly similar to original).

I have tested the spares,they runs as originals ones.Using european cars 6V bulbs is also a solution,but they do not complies exactly (6V; 5W ),flippers spares are preferables.

Olivier Palix

Attachments

Olivier Palix, 12.Sep.15

Weitere Posts (2) zu diesem Thema.

TV-7 military tube testers are appreciated and widely used because of their versatility, ruggedness and simple operation. Unfortunately the meter just gives arbitrary values, from 0 to 120, and data tables indicate the minimum acceptable value for each tube.

But the arbitrary values of the meter can be easily converted to the actual mutual conductance Gm, expressed in micromhos, using the table below.

 

Intermediate values can be readily calculated by linear interpolation.

The table comes from the TM 11-6625-274-12 manual, covering models TV-7/U, TV-7/AU, TV-7/BU and TV-7/DU. Probably it should also apply to TV-7/CU.
 

Emilio Ciardiello, 27.Dec.09

Weitere Posts (5) zu diesem Thema.