Tube Tester Metal 6L6 Calibration Bogie Tube in umhos for Hickok, Heathkit, etc

Slide Slide Slide
$57.99
Non-Domestic Product
No
Brand
Unbranded
Custom Bundle
No
Modified Item
No
condition
Used
One 6L6 that has been marked with its µmhos (umhos or micromhos) values to be used in calibrating tube testers that have a µmhos readout on their dial.  This tube has been calibrated using a known good laboratory grade tube tester serviced and calibrated by a professional.  It is also then double checked using a modern computerized & calibrated tube tester.  See pictures.

Tube may be used (which is actually a good thing for calibration tubes).  
Tube in picture are just representative, not the actual tube you will receive.
We use brand name tubes such as RCA, Sylvania, Tung-Sol, etc. for making these sets.
Typically the 6L6 is a metal tube, which are very good for this purpose.
These tubes are tested for shorts / gas before calibration
Tubes tested at 250v plate, -20v grid.

A few common tube testers that have µmhos readout on their dials include:
Hickok 533A, 600, 600A, 800A, 800K, 605, 6000, 6000A, 539A, 539B, 539C, 752, 752A, 536, 750, etc.
Western Electric KS-15750
Heathkit TT-1
TV-3, TV-10, TV-2
Many More...

If you are looking to calibrate a TV-7 tube tester, please see my other auction for tubes marked specifically for them.

You will need to find the calibration instructions for your tube tester on-line and use them.  These tubes will ensure you have calibrated them correctly as they have been marked by a known recently calibrated tube tester.

Tube Tester NOT Included