6E5S MAGIC EYE TUBE! NOS! OTK!  RARE 1970! TESTED!  1pcs.
All Tubes made by SVETLANA military plant and have "OTK" test marking.

Do not miss the opportunity to get a rare tube 1 units in a box in the photo same date!
Perhaps this is the last tube in such a state, the production of this !!!
Electron- light 6E5S intended to indicate the settings in the superheterodyne receiver, recorders, transmitters and instrumentation. Approximate foreign counterparts : 6E5GT, EM71 (a), HM71 (a), 6U5, 6U5G, 12U5-G, 19U5-G.

Indirectly heated oxide cathode. Works in any position.
Available in glass design.
The service life of at least 5000 hours.
Octal socket with the key. Pin 6.
Crater glow of the screen is green.
Nominal Electrical data: 
Filament voltage, V                             6,3
Anode voltage, V                                250
The voltage on the crater is                    250
The bias voltage on the control grid, B           - 4
Filament current,                              300 mA