6E5S is not 6E5 tube and cannot replace it! 

The electronic indicator light for indication of tuning in radio receivers, radio stations, indication of recording level in tape recorders, is successfully used to indicate the signal level in the tube ULF.

It was used for indicating tuning in radio receivers, radio stations, recording level indication in tape recorders. Now it is successfully used for signal level indication in tube ULF. Indication is carried out by a circular sector of green color through the canopy of the cylinder.

6E5S is not 6E5 tube and cannot replace it!

Basic parameters at Un = 6.3 V, Ua = 250 V, Uа.k. = 250 V, Uc = -4 V

Parameter Conditions 6E5C Unit rev.

Analog - - -

Filament current - 300 ± 25 mA

Anode current - 5.3 ± 1.9 mA

Crater anode current - 3 ± 2.6 mA

Reverse grid current - ≤2 μA

Slope of the characteristic - 1.2 ± 0.4 mA / V

Cut-off voltage, negative - 5 ± 4.5 V

Gain - 23 ± 5 -

Operating time - ≥1500 h

Limit operating data

Parameter Conditions 6E5C Unit rev

Filament voltage - 5.7-6.9 V

Anode voltage - 250 V

Crater anode voltage - 140-250 V

Voltage between cathode and heater - 100 V

Resistance to external influences

Ambient operating temperature range - -60 ... + 70 ºС 

Pin layout for the 6E5S tube is as follows:

Pin 1: Not used,

Pin 2: Heater,

Pin 3: Anode,

Pin 4: Not used,

Pin 5: Input Grid,

Pin 6: Target,

Pin 7: Heater,

Pin 8: Cathode.